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 A130585 #4 Feb 21 2022 00:18:45 %S A130585 1,2,1,3,4,2,4,7,6,2,5,16,24,16,4,6,15,22,20,10,2,7,36,90,120,90,36,6, %T A130585 8,35,90,142,140,84,28,4,9,52,170,336,420,336,168,48,6,10,53,168,352, %U A130585 508,504,336,144,36,4 %N A130585 A054522 * A007318. %C A130585 A130584 = A007318 * A054522 Row sums = A130586: (1, 3, 9, 19, 65, 75, 385, ...). %F A130585 A054522 * A007318 as infinite lower triangular matrices. %e A130585 First few rows of the triangle: %e A130585 1; %e A130585 2, 1; %e A130585 3, 4, 2; %e A130585 4, 7, 6, 2; %e A130585 5, 16, 24, 16, 4; %e A130585 6, 15, 22, 20, 10, 2; %e A130585 7, 36, 90, 120, 90, 36, 6; %e A130585 ... %Y A130585 Cf. A054522, A007318, A130585, A130586. %K A130585 nonn,tabl %O A130585 0,2 %A A130585 _Gary W. Adamson_, Jun 06 2007