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.
%I A103229 #10 Feb 10 2020 06:14:22
%S A103229 0,3,0,5,8,12,0,-7,0,28,0,20,18,24,32,-15,22,39,0,-12,0,36,0,-28,31,
%T A103229 54,0,40,36,112,0,33,0,62,64,65,44,60,72,-92,50,96,0,60,104,72,0,-60,
%U A103229 0,-46,88,-42,62,120,96,-56,0,96,0,-48,72,96,0,65,120,144,0,-58,0,224,0,-91,84,112,124,100,0,216,0,68,0,130,0,160,136
%N A103229 Imaginary part of the sum of divisors function sigma(n) generalized for Gaussian integers.
%C A103229 See A102506 for a complete description.
%C A103229 See A103228 for the real part and A103230 for the norm.
%H A103229 Amiram Eldar, <a href="/A103229/b103229.txt">Table of n, a(n) for n = 1..10000</a>
%t A103229 Im[Table[DivisorSigma[1, n, GaussianIntegers -> True], {n, 100}]]
%Y A103229 Cf. A102506, A103228, A103230.
%K A103229 sign
%O A103229 1,2
%A A103229 _T. D. Noe_, Jan 26 2005