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 A127373 #6 Feb 14 2022 21:22:52 %S A127373 1,1,0,2,1,0,3,0,1,0,6,2,1,1,0,5,0,0,0,1,0,12,4,2,1,1,1,0,13,0,1,0,1, %T A127373 0,1,0,18,4,0,2,1,0,1,1,0,15,0,3,0,0,0,1,0,1,0 %N A127373 Triangle, row sums = A023896, left column = A053570. %C A127373 Row sums = A023896: (1, 1, 3, 4, 10, 6, ...); left column = A053570: (1, 2, 3, 6, 5, 12, ...). %F A127373 A054521 * A054523 as infinite lower triangular matrices. %e A127373 First few rows of the triangle: %e A127373 1; %e A127373 1, 0; %e A127373 2, 1, 0; %e A127373 3, 0, 1, 0; %e A127373 6, 2, 1, 1, 0; %e A127373 5, 0, 0, 0, 1, 0 %e A127373 12, 4, 2, 1, 1, 1, 0; %e A127373 ... %Y A127373 Cf. A054521, A054523, A053570, A023896. %K A127373 nonn,tabl %O A127373 1,4 %A A127373 _Gary W. Adamson_, Jan 12 2007