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 A134575 #6 Mar 26 2022 04:17:36 %S A134575 1,1,4,1,0,9,1,4,0,16,1,0,0,0,25,1,4,9,0,0,36,1,0,0,0,0,0,49,1,4,0,16, %T A134575 0,0,0,64,1,0,9,0,0,0,0,0,81,1,4,0,0,25,0,0,0,0,100 %N A134575 A051731 * A127733. %C A134575 Row sums = A001157: (1, 5, 10, 21, 26, 25, 50, 50, ...). %F A134575 A051731 * A127733 as infinite lower triangular matrices. %e A134575 First few rows of the triangle: %e A134575 1; %e A134575 1, 4; %e A134575 1, 0, 9; %e A134575 1, 4, 0, 16; %e A134575 1, 0, 0, 0, 25; %e A134575 1, 4, 9, 0, 0, 36; %e A134575 1, 0, 0, 0, 0, 0, 49; %e A134575 ... %Y A134575 Cf. A051731, A127733, A001157. %K A134575 nonn,tabl %O A134575 1,3 %A A134575 _Gary W. Adamson_, Nov 02 2007