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 A132476 #5 Mar 06 2022 00:27:01 %S A132476 1,3,1,3,8,1,3,7,13,1,3,14,12,18,1,3,13,38,18,23,1,3,20,35,80,25,28,1, %T A132476 3,19,75,75,145,33,33,1,3,26,70,210,140,238,42,38,1,3,25,124,196,490, %U A132476 238,364,52,43,1 %N A132476 A007318^(-1) * [3*A007318^2 - 2*A000012]. %C A132476 Row sums = A132477: (1, 4, 12, 24, 48, 96, 192, ...). %F A132476 Inverse binomial transform of [3*A007318 - 2*A000012], as infinite lower triangular matrices. %e A132476 First few rows of the triangle: %e A132476 1; %e A132476 3, 1; %e A132476 3, 8, 1; %e A132476 3, 7, 13, 1; %e A132476 3, 14, 12, 18, 1; %e A132476 3, 13, 38, 18, 23, 1; %e A132476 3, 20, 35, 80, 25, 28, 1; %e A132476 ... %Y A132476 Cf. A007318, A000012, A132477. %K A132476 nonn,tabl %O A132476 0,2 %A A132476 _Gary W. Adamson_, Aug 22 2007