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 A130300 #4 Feb 20 2022 14:51:18 %S A130300 1,3,1,8,3,1,20,7,4,1,48,15,11,5,1,112,31,26,16,6,1,256,63,57,42,22,7, %T A130300 1,576,127,120,99,64,29,8,1,1280,255,247,219,163,93,37,9,1,2816,511, %U A130300 502,466,382,256,130,46,10,1 %N A130300 A007318 * A130296. %C A130300 Row sums = A001787: (1, 4, 12, 32, 80, 192, ...). %C A130300 Left border = A001792: (1, 3, 8, 20, 48, 112, ...). %C A130300 A130301 = A130296 * A007318. %F A130300 Binomial transform of A130296. %e A130300 First few rows of the triangle: %e A130300 1; %e A130300 3, 1; %e A130300 8, 3, 1; %e A130300 20, 7, 4, 1; %e A130300 48, 15, 11, 5, 1; %e A130300 112, 31, 26, 16, 6, 1; %e A130300 256, 63, 57, 42, 22, 7, 1; %e A130300 ... %Y A130300 Cf. A130296, A001787, A001792, A130301. %K A130300 nonn,tabl %O A130300 1,2 %A A130300 _Gary W. Adamson_, May 20 2007