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 A132071 #5 Mar 05 2022 01:00:04 %S A132071 1,2,2,3,5,3,4,7,7,4,5,9,11,9,5,6,11,16,16,11,6,7,13,22,27,22,13,7,8, %T A132071 15,29,43,43,29,15,8,9,17,37,65,79,65,37,17,9,10,19,46,94,136,136,94, %U A132071 46,19,10 %N A132071 A007318 + A002024 - A103451 as infinite lower triangular matrices. %C A132071 Row sums = A132072: (1, 4, 11, 22, 39, 66, 111, ...). %e A132071 First few rows of the triangle: %e A132071 1; %e A132071 2, 2; %e A132071 3, 5, 3; %e A132071 4, 7, 7, 4; %e A132071 5, 9, 11, 9, 5; %e A132071 6, 11, 16, 16, 11, 6; %e A132071 7, 13, 22, 27, 22, 13, 7; %e A132071 ... %Y A132071 Cf. A007318, A002024, A103451, A132072. %K A132071 nonn,tabl %O A132071 0,2 %A A132071 _Gary W. Adamson_, Aug 09 2007