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 A191338 #5 Mar 30 2012 18:57:32 %S A191338 1,2,4,5,8,11,14,17,18,20,21,23,24,27,30,33,36,37,39,40,42,43,45,46, %T A191338 49,52,55,58,59,61,62,64,65,68,71,74,77,78,80,81,83,84,86,87,90,93,96, %U A191338 97,99,100,102,103,105,106,109,112,115,118,119,121,122,124,125,127,128,131,134,137,138,140,141,143,144,146,147,150,153,156,159 %N A191338 Positions of 1 in A191336. %C A191338 See A191336. %t A191338 (See A191336.) %Y A191338 Cf. A191336, A191329. %K A191338 nonn %O A191338 1,2 %A A191338 _Clark Kimberling_, Jun 01 2011