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 A133110 #8 Jun 01 2023 14:55:15 %S A133110 1,1,3,1,6,4,1,9,12,5,1,12,24,20,7,1,15,40,50,35,8,1,18,60,100,105,48, %T A133110 9,1,21,84,175,245,168,63,11,1,24,112,280,490,448,252,88,12,1,27,144, %U A133110 420,882,1008,756,396,108,13,1,30,180,600,1470,2016,1890,1320,540,130,15,1,33,220,825,2310,3696,4158,3630,1980,715,165,16 %N A133110 Triangle read by rows: A007318 * A133109. %C A133110 Row sums = A100335: (1, 4, 11, 27, 64, 149, ...). %F A133110 Binomial transform of A133109, as an infinite lower triangular matrix. %e A133110 First few rows of the triangle: %e A133110 1; %e A133110 1, 3; %e A133110 1, 6, 4; %e A133110 1, 9, 12, 5; %e A133110 1, 12, 24, 20, 7; %e A133110 1, 15, 40, 50, 35, 8; %e A133110 1, 18, 60, 100, 105, 48, 9; %e A133110 ... %Y A133110 Cf. A007318, A100335, A133109. %K A133110 nonn,tabl %O A133110 1,3 %A A133110 _Gary W. Adamson_, Sep 12 2007 %E A133110 a(50) corrected and more terms from _Georg Fischer_, Jun 01 2023