cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A332736 Numbers k such that the sum of the norm of divisors of k in Gaussian integers is divisible by k.

Original entry on oeis.org

1, 14, 15, 30, 60, 70, 120, 210, 315, 350, 630, 1260, 1612, 1680, 1860, 2520, 4095, 4588, 5080, 5250, 5535, 8190, 10850, 11070, 11284, 15240, 16380, 17520, 22140, 24180, 32760, 34125, 38745, 39060, 40880, 42000, 42720, 43216, 44280, 45720, 54243, 56420, 59644
Offset: 1

Views

Author

Amiram Eldar, Feb 21 2020

Keywords

Examples

			14 is a term since A317797(14) = 350 is divisible by 14.
		

Crossrefs

Programs

  • Mathematica
    Select[Range[10000], Divisible[Plus @@ (Abs[Divisors[#, GaussianIntegers -> True]]^2), #] &]