The Juggler sequence is a mathematical sequence defined for positive integers. Given a positive integer \( n \), the sequence is generated according to the following rules: - If \( n \) is even, the next term is calculated as \( \sqrt{n} \). - If \( n \) is odd, the next term is calculated as \( \sqrt{3n} \).
The Journal of Integer Sequences (JIS) is a peer-reviewed open-access journal that publishes research articles focused on the study of integer sequences. It is dedicated to the examination and exploration of sequences of integers, which are critical in various fields such as mathematics, computer science, and number theory. The journal was established in 1998, and it operates under the auspices of the University of Missouri.
The term "irrationality sequence" generally refers to a sequence of numbers or values that are irrational. In mathematics, an irrational number is a number that cannot be expressed as a simple fraction, meaning it cannot be written in the form \( \frac{p}{q} \), where \( p \) and \( q \) are integers and \( q \neq 0 \). Instead, the decimal representation of an irrational number is non-repeating and non-terminating.
As of my last knowledge update in October 2023, there isn't a widely recognized concept, software, or technology specifically referred to as "Interprime." It’s possible that it could refer to a specific product, company, or a new concept that emerged after my last training cut-off date, or it might be a term used in a niche area.
An integer sequence is a list of numbers arranged in a specific order, where each number in the list (called a term) is an integer. Integer sequences can be defined in various ways, such as by a formula, a recurrence relation, or by specifying initial terms.
Integer complexity is a concept in number theory that refers to the minimum number of ones needed to express a positive integer \( n \) using just addition, multiplication, and parentheses. The complexity of an integer is denoted as \( C(n) \). For example: - The integer \( 1 \) has a complexity of \( C(1) = 1 \) because it can be represented as simply using one "1".
An Idoneal number is a positive integer \( n \) such that the equation \( x^2 - n y^2 = 1 \) has a solution in integers \( (x, y) \). This is a specific case of Pell's equation, which is generally of the form \( x^2 - D y^2 = 1 \) for some positive integer \( D \).
A **hyperperfect number** is a generalization of perfect numbers. While a perfect number is defined as a positive integer that is equal to the sum of its proper divisors (excluding itself), hyperperfect numbers extend this concept by introducing a parameter. In particular, a hyperperfect number can be defined in relation to a positive integer \( k \).
The hyperfactorial of a non-negative integer \( n \), denoted as \( H(n) \), is a mathematical function that extends the concept of a factorial. It is defined as the product of each integer from 1 to \( n \), each raised to the power of itself.
Hooley's delta function, often denoted as \( \Delta(s) \), is a mathematical tool used in number theory, particularly in the context of the Generalized Riemann Hypothesis and the distribution of prime numbers. It was introduced by C. Hooley in his work related to the study of integers represented by quadratic forms and sieve methods. The function is defined in terms of the values of L-functions, specifically for certain Dirichlet series associated with characters.
A home prime is a concept in number theory that relates to the representation of numbers as sums of prime numbers. Specifically, a home prime is produced by repeatedly factoring a composite number into its prime factors, then concatenating those prime factors (written in order), and repeating the process until a prime number is obtained. Here’s how it works in detail: 1. Start with a composite number. 2. Factor it into its prime factors.
The Hofstadter sequence is a family of sequences named after the American computer scientist Douglas Hofstadter, who introduced it in his book "Gödel, Escher, Bach: An Eternal Golden Braid." There are several variations of Hofstadter sequences, but one of the most well-known is the Hofstadter Q-sequence, defined recursively as follows: 1. \( Q(1) = 1 \) 2. \( Q(2) = 1 \) 3.
The Hilbert number is generally associated with the concept of the Hilbert space and refers to a specific enumeration of points in such spaces. However, in a more concrete mathematical context, "Hilbert numbers" are often used to refer to certain types of sequences or series associated with the work of the mathematician David Hilbert, particularly in relation to cardinalities, sets, and various hierarchies within mathematical analysis or topology.
A Highly Totient Number is a positive integer \( n \) for which the equation \[ \Phi(\Phi(\Phi(... \Phi(n)...))) = 1 \] holds true after applying the Euler's totient function \( \Phi \) repeatedly a positive number of times. The Euler's totient function \( \Phi(n) \) counts the number of positive integers up to \( n \) that are relatively prime to \( n \).
A highly powerful number is defined as a positive integer \( n \) such that for every prime \( p \) that divides \( n \), \( p^2 \) also divides \( n \). In other words, in the prime factorization of a highly powerful number, each prime factor appears with an exponent of at least 2.
A highly cototient number is a natural number \( n \) such that the equation \( x - \varphi(x) = n \) has more solutions than any smaller positive integer \( m \). Here, \( \varphi(x) \) is the Euler's totient function, which counts the number of integers up to \( x \) that are relatively prime to \( x \).
A highly composite number is a positive integer that has more divisors than any smaller positive integer. In other words, it is a number that has a greater number of divisors than all the integers less than it. The concept of highly composite numbers was introduced by the mathematician Srinivasa Ramanujan.
A highly abundant number is a positive integer that has a particularly high ratio of the sum of its divisors to the number itself. More formally, a highly abundant number \( n \) satisfies the condition that for any integer \( m < n \), the sum of the divisors function \( \sigma(m) \) (which returns the sum of all positive divisors of \( m \)) is less than \( \sigma(n) \) divided by \( n \).
A Hermite number is a specific kind of number that arises in the context of algebraic number theory and is related to Hermite's work in mathematics. However, the term "Hermite number" is not widely used or standardized in mathematics, and it may not refer to a universally recognized concept.

Pinned article: Introduction to the OurBigBook Project

Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
We have two killer features:
  1. topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculus
    Articles of different users are sorted by upvote within each article page. This feature is a bit like:
    • a Wikipedia where each user can have their own version of each article
    • a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
    This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
    Figure 1.
    Screenshot of the "Derivative" topic page
    . View it live at: ourbigbook.com/go/topic/derivative
  2. local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:
    This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
    Figure 5. . You can also edit articles on the Web editor without installing anything locally.
    Video 3.
    Edit locally and publish demo
    . Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact