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 A116649 #3 Mar 31 2012 13:21:11 %S A116649 1,3,5,9,15,17,23,25,29,33,41,49,53,63,67,71,75,79,85,89,95,99,103, %T A116649 107,139,143,163,167,175,179,199,219,223,227,235,243,267,271,275,279, %U A116649 283,291,299,307,323,333,337,351,357,361,371,381,395,405,425,449,457 %N A116649 Positions where A116648(i) is greater than A116648(i-1). %C A116649 Equivalently, from i>1 onward those i where A116626(i) = A116648(i-1). Conjecture: all the terms are odd. %Y A116649 Cf. A116650. %K A116649 nonn %O A116649 1,2 %A A116649 _Antti Karttunen_, Feb 21 2006