 Project Euler problem zero

ID: project-euler-problem-zero

Ciro Santilli 37 Created 2025-10-14 Updated 2025-10-27

This was a registration CAPTCHA problem as of 2025:

Among the first 510 thousand square numbers, what is the sum of all the odd squares?

Python solution:

s = 0
for i in range(1, 510001, 2):
    s += i*i
print(s)

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