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 A277818 #10 Nov 05 2016 07:26:02 %S A277818 1,1,2,1,3,2,1,1,2,3,1,2,1,1,4,1,5,2,1,3,1,1,2,2,1,1,3,1,2,4,1,1,2,5, %T A277818 1,2,1,1,3,3,1,1,2,1,4,2,1,2,1,1,6,1,2,3,1,1,3,2,1,4,1,1,2,1,3,2,1,5, %U A277818 1,1,2,2,1,1,4,1,2,3,1,3,1,1,2,1,7,2,1,1,2,4,1,2,1,1,3,2,1,1,3,1,2,6,1,1,4,2,1,3,1,1,2,1,2,3,1,2,1,1,5,4 %N A277818 Index of the column where n is located in array A277820: a(n) = 1 + A268389(n). %C A277818 Ordinal transform of A268671. %H A277818 Antti Karttunen, <a href="/A277818/b277818.txt">Table of n, a(n) for n = 1..16384</a> %H A277818 <a href="/index/Bi#binary">Index entries for sequences related to binary expansion of n</a> %H A277818 <a href="/index/Ge#GF2X">Index entries for sequences operating on polynomials in ring GF(2)[X]</a> %F A277818 a(n) = 1 + A268389(n). %o A277818 (Scheme) (define (A277818 n) (+ 1 (A268389 n))) %Y A277818 One more than A268389. %Y A277818 Cf. A277820. %Y A277818 Cf. A268671 for the other index, also A277822. %K A277818 nonn,base %O A277818 1,3 %A A277818 _Antti Karttunen_, Nov 02 2016