Dodecagonal number
= Dodecagonal number
{wiki=Dodecagonal_number}
A dodecagonal number is a figurate number that represents a twelve-sided polygon, known as a dodecagon. The \\(n\\)-th dodecagonal number can be calculated using the formula: \\\[ P_\{12\}(n) = 6n^2 - 6n + 2 \\\] where \\(P_\{12\}(n)\\) denotes the \\(n\\)-th dodecagonal number.