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 A074498 #4 Mar 30 2012 18:39:52 %S A074498 1,3,13,29,39,93,107,117,123,143,193,197,239,299,347,377,387,411,423, %T A074498 435,439,487,493,515,529,551,575,637,639,655,661,695,743,745,751,769, %U A074498 777,797,809,869,897,919,929,931,947,991,1005,1015,1033,1051,1057,1063 %N A074498 Odd numbers which retain their relative position in A074368 (not disturbed in the rearrangement process). %Y A074498 Cf. A074368, A073664. %K A074498 nonn %O A074498 1,2 %A A074498 _Hans Havermann_, Sep 26 2002