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 A139362 #4 Jun 25 2012 22:57:54 %S A139362 1,3,18,58,142,232,357,465,724,1084,1969,2929,3160,3580,4284,4854, %T A139362 5254,5460,6120,6904,7384,8134,8779,9319,9730,10450,11175,11787,12403, %U A139362 13047,14202,14878,15403,16293,18573,20503,23527,26565,28965,32137,33412 %N A139362 Values of m such that A139361(n)=4m+1. %F A139362 a(n)=(A139361(n)-1)/4 %Y A139362 Cf. A080478, A139361. %K A139362 nonn %O A139362 1,2 %A A139362 _Zak Seidov_, Apr 15 2008