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 A126705 #4 Feb 14 2022 21:10:39 %S A126705 1,2,1,3,1,1,4,1,1,1,6,1,0,1,1,6,2,1,0,1,1,8,2,1,0,0,1,1,10,2,0,1,0,0, %T A126705 1,1,10,2,2,1,0,0,0,1,1,10,4,2,0,1,0,0,0,1,1 %N A126705 A097806 * A054523 as infinite lower triangular matrices. %C A126705 Row sums = (1, 3, 5, 7, 9, ...). A129479 = A054523 * A097806. A097806 = the pairwise operator. %e A126705 First few rows of the triangle: %e A126705 1; %e A126705 2, 1; %e A126705 3, 1, 1; %e A126705 4, 1, 1, 1; %e A126705 6, 1, 0, 1, 1; %e A126705 6, 2, 1, 0, 1, 1; %e A126705 8, 2, 1, 0, 0, 1, 1; %e A126705 ... %Y A126705 Cf. A097806 * A054523, A129479. %K A126705 nonn,tabl %O A126705 1,2 %A A126705 _Gary W. Adamson_, Apr 17 2007