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 A093656 #3 Mar 30 2012 18:36:40 %S A093656 1,2,2,6,2,6,6,28,2,6,6,28,6,28,28,206,2,6,6,28,6,28,28,206,6,28,28, %T A093656 206,28,206,206,2418,2,6,6,28,6,28,28,206,6,28,28,206,28,206,206,2418, %U A093656 6,28,28,206,28,206,206,2418,28,206,206,2418,206,2418,2418,45970 %N A093656 Row sums of lower triangular matrix A093654. %F A093656 a(2^n+1) = 2 for n>=0. a(2^n+2^m) = a(2^(m+1)) for n>m>=0. %Y A093656 Cf. A093654. %K A093656 nonn %O A093656 1,2 %A A093656 _Paul D. Hanna_, Apr 08 2004