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 A130459 #4 Feb 20 2022 14:58:15 %S A130459 1,3,2,3,6,4,3,6,12,8,3,6,12,24,16,3,6,12,24,48,32,3,6,12,24,48,96,64, %T A130459 3,6,12,24,48,96,192,128,3,6,12,24,48,96,192,384,256 %N A130459 A059268 * A097806. %C A130459 Row sums = A036563 starting (1, 5, 13, 29, 61, 125, ...). %F A130459 A059268 * A097806 as infinite lower triangular matrices. A059268 = [1; 1,2; 1,2,4; ...]. A097806 = the pairwise operator. %e A130459 First few rows of the triangle: %e A130459 1; %e A130459 3, 2; %e A130459 3, 6, 4; %e A130459 3, 6, 12, 8; %e A130459 3, 6, 12, 24, 16; %e A130459 3, 6, 12, 24, 48, 32; %e A130459 ... %Y A130459 Cf. A059268, A097806, A036563. %K A130459 nonn,tabl %O A130459 1,2 %A A130459 _Gary W. Adamson_, May 26 2007