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 A074898 #23 Feb 20 2024 07:01:46 %S A074898 1,6,7,9,11,15,17,20,21,25,26,27,29,31,33,35,37,38,43,44,45,47,49,51, %T A074898 53,59,61,62,63,65,67,68,69,71,73,75,77,79,81,82,83,85,87,89,91,93,95, %U A074898 97,99,100,103,105,109,111,113,115,117,119,120,121,123,125,127,128,129,131,133,134,135,137,139,141,143,145,146,149,151,153,155,157,158,159,161,163,165,167,168,169,170,171 %N A074898 Impossible values for sum of anti-divisors of n. %C A074898 See A066272 for definition of anti-divisor. %H A074898 Paolo P. Lava, <a href="/A074898/b074898.txt">Table of n, a(n) for n = 1..10000</a> %Y A074898 Cf. A005114, A066417. %K A074898 nonn %O A074898 1,2 %A A074898 _Jason Earls_, Sep 14 2002 %E A074898 More terms from _Paolo P. Lava_, Jul 06 2011