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Computational Number Theory is for explicit calculations or algorithms involving anything of interest to number theorists.

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Numbers that are the sum of 2 distinct nonzero squares in exactly 1 way [closed]

I need to emulate this sequence for a program: http://oeis.org/A025302 Stuff that I've taken into account: After finding the prime divisors of a number. I take any divisor as p and apply the follow …