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 A101367 #8 Jun 05 2025 23:31:59
%S A101367 5,3,19,15,29,6,74,19,111,147,185,91,197,269,122,159,72,827,1487,2903,
%T A101367 968,999,702,5803,326,2474,7871
%N A101367 Perfect Abs. Real part of complex z such that Abs[(Total[Divisors[z]]-z)]=Abs[z].
%C A101367 Having Perfect Abs is not as good as being Perfect. A complex number can also have Abundant Abs or Deficient Abs.
%e A101367 The divisors for 269+92i are: 1, 2+I, 3+4i, 6+5i, 7+2i, 7+16i, 12+11i, 13+34i, 17+126i, 32+47i, 39+2i, 269+92i. The (sum - k) is 139+248i. Abs[139+248i] == Abs[269+92i]
%t A101367 Re[Sort[Select[Flatten[Table[a + b I, {a, 1, 500}, {b, 1, 500}]], Abs[Total[Divisors[ # ]] - # ] == Abs[ # ] &], Abs[ #1] < Abs[ #2] &]]
%Y A101367 Cf. A101366, A102527, A102531, A102532, A102506, A102507.
%K A101367 nonn
%O A101367 0,1
%A A101367 _Ed Pegg Jr_, Jan 13 2005
%E A101367 Ten more terms from _Hans Havermann_, Jan 15 2005