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 A038161 #10 Jul 08 2025 22:08:31 %S A038161 0,1,2,3,5,6,7,9,10,12,14,15,16,18,20,21,23,25,27,28,31,33,35,37,39, %T A038161 40,42,44,45,47,49,50,52,56,58,60,61,63,64,66,68,70,72,73,75,77,79,83, %U A038161 85,86,89,91,93,95,97,99,102,104,106,108,110,112,114,115 %N A038161 (A038590-1)/6. %H A038161 Hugo Pfoertner, <a href="/A038161/b038161.txt">Table of n, a(n) for n = 0..10000</a> %Y A038161 Cf. A035019, A038162, A038590. %K A038161 nonn %O A038161 0,3 %A A038161 _N. J. A. Sloane_