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 A244985 #7 Jul 22 2014 10:25:03 %S A244985 1,2,4,8,13,22,36,57,89,142,224,354,562,893,1425,2276,3642,5838,9397, %T A244985 15154,24517,39757,64606,105249,171873,281236,461254,758039,1248269 %N A244985 Position of 2^n in A070003. %e A244985 A070003(9397) = 1048576 = 2^20, thus a(20) = 9397. %Y A244985 One less than A244986 from n=2 onward. %Y A244985 Cf. A000079, A070003. %K A244985 nonn %O A244985 2,2 %A A244985 _Antti Karttunen_, Jul 21 2014