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 A136534 #7 Apr 01 2022 21:25:03 %S A136534 1,2,2,4,8,3,7,24,21,4,11,60,90,44,5,16,130,300,260,80,6,22,2252,840, %T A136534 1120,630,132,7,29,448,2058,3920,3430,1344,203,8,37,744,4536,11760, %U A136534 14700,9072,2604,296,9,46,1170,9180,31248,52920,46872,21420,4680,414,10 %N A136534 A001263 * A128064 (unsigned). %C A136534 Row sums = A001791: (1, 4, 15, 56, 210, ...). %C A136534 Left column = A000124: (1, 2, 4, 7, 11, 16, 22, ...). %F A136534 A001263 * A128064 (unsigned), A001263 = the Narayana triangle, A128064 = an infinite lower triangular matrix with (1, 2, 3, ...) in the main and subdiagonals. %e A136534 First few rows of the triangle: %e A136534 1; %e A136534 2, 2; %e A136534 4, 8, 3; %e A136534 7, 24, 21, 4; %e A136534 11, 60, 90, 44, 5; %e A136534 16, 130, 300, 260, 80, 6; %e A136534 22, 252, 840, 1120, 630, 132, 7; %e A136534 ... %Y A136534 Cf. A001263, A128064, A001791, A000124. %K A136534 nonn,tabl %O A136534 1,2 %A A136534 _Gary W. Adamson_, Jan 04 2008