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 A131374 #6 May 07 2022 09:10:21 %S A131374 1,2,1,1,2,1,2,1,3,1,1,3,3,3,1,2,1,7,3,4,1,1,4,5,8,6,4,1,2,1,12,5,15, %T A131374 6,5,1,1,5,7,16,15,16,10,5,1,2,1,18,7,36,15,27,10,6,1 %N A131374 A046854 + A065941 - A049310. %C A131374 Row sums = the Lucas numbers, A000032 starting (1, 3, 4, 7, 11, 18,...). %F A131374 A046854 + A065941 - A049310 as infinite lower triangular matrices. %e A131374 First few rows of the triangle are: %e A131374 1; %e A131374 2, 1; %e A131374 1, 2, 1; %e A131374 2, 1, 3, 1; %e A131374 1, 3, 3, 3, 1 %e A131374 2, 1, 7, 3, 4, 1; %e A131374 1, 4, 5, 8, 6, 4, 1; %e A131374 ... %Y A131374 Cf. A046854, A065941, A049310, A000032. %K A131374 nonn,tabl %O A131374 0,2 %A A131374 _Gary W. Adamson_, Jul 03 2007