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 A108337 #5 Mar 31 2012 21:03:34 %S A108337 0,1,3,5,6,13,15,16,18,25,26,28,30,31,63,65,66,68,75,76,80,82,83,85, %T A108337 86,87,88,90,92,96,97,99,100,101,107,108,110,113,114,115,117,118,120, %U A108337 121,122,130,131,132,136,137,139,141,143,144,145,147,149,150 %N A108337 Positions of the odd terms in A084202, which gives the coefficients b(n) such that (B(x))^2 has coefficients 1 and 2. %C A108337 Also positions of 1's in A108336, which gives the coefficients of b(n) such that (B(x))^2 has coefficients 1 or 2 mod 4. %C A108337 Equals A108783(n)/2. %K A108337 nonn %O A108337 0,3 %A A108337 _N. J. A. Sloane_, Jul 02 2005 %E A108337 Additional comments from _Nadia Heninger_, Jul 14 2007