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 A185696 #10 Mar 30 2012 18:59:28 %S A185696 1,1,3,7,19,45,115,285,719,1787,4479,11187,27995,69963,174983,437479, %T A185696 1093979,2735277,6839563,17101645,42761895,106922765,267354083, %U A185696 668500353,1671542631,4179580385,10450769059,26131457413,65339997959,163378363353,408516874363 %N A185696 Eigensequence for the Gould sequence triangle (with general term A001316(n-k) if k<=n, 0 otherwise). %C A185696 First column of the inverse of the number triangle T(n,k)=if(k<n, -A001316(n-k-1,k), if(k=n,1,0)). Essentially INVERT transform of A001316. %F A185696 G.f.: 1/(1-x*Product(k>=0,1+2x^(2^k))). %K A185696 nonn,easy %O A185696 0,3 %A A185696 _Paul Barry_, Feb 10 2011