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 A349816 #15 Dec 24 2021 13:11:18 %S A349816 1,1,1,1,2,1,2,4,4,3,1,8,13,12,8,4,1,13,33,41,37,25,13,5,1,74,124,136, %T A349816 116,80,44,19,6,1,124,334,450,456,376,259,149,70,26,7,1,784,1364,1616, %U A349816 1541,1240,854,504,252,104,34,8,1,1364,3764,5305,5761,5251,4139,2850,1714,894,398,147,43,9,1,9069,16194,20081,20456,18001,13954,9597,5856,3153,1482,597,200,53,10,1 %N A349816 Irregular triangle read by rows: the right-hand side of the triangle in A349815. %C A349816 It seems more symmetrical to omit the central column of zeros in A349815. %e A349816 Triangle begins: %e A349816 1; %e A349816 1, 1; %e A349816 1, 2, 1; %e A349816 2, 4, 4, 3, 1; %e A349816 8, 13, 12, 8, 4, 1; %e A349816 13, 33, 41, 37, 25, 13, 5, 1; %e A349816 74, 124, 136, 116, 80, 44, 19, 6, 1; %e A349816 124, 334, 450, 456, 376, 259, 149, 70, 26, 7, 1; %e A349816 784, 1364, 1616, 1541, 1240, 854, 504, 252, 104, 34, 8, 1; %e A349816 ... %Y A349816 Cf. A348815, A349818. %K A349816 nonn,tabf %O A349816 0,5 %A A349816 _N. J. A. Sloane_, Dec 23 2021