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 A135184 #10 Jun 05 2023 21:20:37 %S A135184 1,3,1,5,5,1,5,11,7,1,5,11,19,9,1,5,11,19,29,11,1,5,11,19,29,41,13,1, %T A135184 5,11,19,29,41,55,15,1,5,11,19,29,41,55,71,17,1,5,11,19,29,41,55,71, %U A135184 89,19,1,5,11,19,29,41,55,71,89,109,21,1,5,11,19,29,41,55,71,89,109,131,23,1 %N A135184 Triangle read by rows: A000012 * A128229^2 as infinite lower triangular matrices. %C A135184 Row sums = A006527: (1, 4, 11, 24, 45, 76, ...). %e A135184 First few rows of the triangle: %e A135184 1; %e A135184 3, 1; %e A135184 5, 5, 1; %e A135184 5, 11, 7, 1; %e A135184 5, 11, 19, 9, 1; %e A135184 5, 11, 19, 29, 11, 1; %e A135184 5, 11, 19, 29, 41, 13, 1; %e A135184 5, 11, 19, 29, 41, 55, 15, 1; %e A135184 ... %Y A135184 Cf. A006527, A128229. %K A135184 nonn,tabl %O A135184 1,2 %A A135184 _Gary W. Adamson_, Nov 21 2007 %E A135184 a(19), a(20) corrected and more terms from _Georg Fischer_, Jun 05 2023