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 A134544 #8 Mar 26 2022 10:21:22 %S A134544 1,2,2,2,2,3,3,4,3,4,2,2,3,4,5,4,6,6,4,5,6,2,2,3,4,5,6,7,4,6,6,8,5,6, %T A134544 7,8,3,4,6,4,5,6,7,8,9,4,6,6,8,10,6,7,8,9,10 %N A134544 A051731 * A002260. %C A134544 Row sums = A007437: (1, 4, 7, 14, 16, 3, 29, 50, ...). %C A134544 Left border = A000010. %F A134544 A051731 * A002260 as infinite lower triangular matrices. %e A134544 First few rows of the triangle: %e A134544 1; %e A134544 2, 2; %e A134544 2, 2, 3; %e A134544 3, 4, 3, 4; %e A134544 2, 2, 3, 4, 5; %e A134544 4, 6, 6, 4, 5, 6; %e A134544 2, 2, 3, 4, 5, 6, 7; %e A134544 4, 6, 6, 8, 5, 6, 7, 8; %e A134544 3, 4, 6, 4, 5, 6, 7, 8, 9; %e A134544 4, 6, 6, 8, 10, 6, 7, 8, 9, 10; %e A134544 ... %Y A134544 Cf. A054731, A007437, A000010. %K A134544 nonn,tabl,more %O A134544 1,2 %A A134544 _Gary W. Adamson_, Oct 31 2007