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 A169744 #2 Mar 30 2012 16:51:44 %S A169744 1,5,11,23,37,43,47,71,79,89,95,133,139,145,151,163,175,179,191,263, %T A169744 283,295,307,319,331,349,353,359,373,379,383,517,523,529,535,551,557, %U A169744 563,571,583,595,607,631,641,647,659,685,691,695,701,707,719,743,751,761,767,1031,1093 %N A169744 Odd numbers n such that A109671(n) = 1. %Y A169744 Cf. A109671, A169743, A169745. %K A169744 nonn %O A169744 1,2 %A A169744 _N. J. A. Sloane_, May 02 2010