y.kohmoto wrote: > I post sequences of Gaussian PN to OEIS. I've been searching for these -- here's a close miss. Total[Divisors[5117 + 10743*I]] - (5117 + 10743*I) gives 10743 + 5117*I Some references: http://www.mathpuzzle.com/GaussianPerfect.txt Ed Pegg Jr