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 A132776 #10 Mar 06 2022 08:35:23 %S A132776 1,3,2,5,8,3,7,18,15,4,9,32,42,24,5,11,50,90,80,35,6,13,72,165,200, %T A132776 135,48,7,15,98,273,420,385,210,63,8,17,128,420,784,910,672,308,80,9, %U A132776 19,162,612,1344,1890,1764,1092,432,99,10 %N A132776 A128064 (unsigned) * A007318. %C A132776 Row sums = A053220: (1, 5, 16, 44, 112, 272, ...). %C A132776 A003506 = A007318 * A128064 (unsigned). %F A132776 A128064 (unsigned) * A007318 as infinite lower triangular matrices. %e A132776 First few rows of the triangle: %e A132776 1; %e A132776 3, 2; %e A132776 5, 8, 3; %e A132776 7, 18, 15, 4; %e A132776 9, 32, 42, 24, 5; %e A132776 11, 50, 90, 80, 35, 6; %e A132776 ... %Y A132776 Cf. A007318, A128064, A053220, A003506. %K A132776 nonn,tabl %O A132776 0,2 %A A132776 _Gary W. Adamson_, Aug 29 2007