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 A133703 #7 Mar 23 2022 07:39:31 %S A133703 1,0,1,1,0,2,0,0,0,1,1,0,0,0,2,0,1,0,0,0,2,1,0,0,0,0,0,2,0,0,0,0,0,0, %T A133703 0,1,1,0,1,0,0,0,0,0,3,0,1,0,0,0,0,0,0,0,2 %N A133703 A054525 * A133701. %C A133703 Right border = A001227: (1, 1, 2, 1, 2, 2, 2, 1, 3, ...), the number of odd divisors of n. %C A133703 Row sums = A023136: (1, 1, 3, 1, 3, 3, 3, 1, 5, 3, ...). %F A133703 Mobius transform of triangle A133701. %e A133703 First few rows of the triangle: %e A133703 1; %e A133703 0, 1; %e A133703 1, 0, 2; %e A133703 0, 0, 0, 1; %e A133703 1, 0, 0, 0, 2; %e A133703 0, 1, 0, 0, 0, 2; %e A133703 1, 0, 0, 0, 0, 0, 2; %e A133703 ... %Y A133703 Cf. A054525, A133701, A001227, A023136. %K A133703 nonn,tabl,more %O A133703 1,6 %A A133703 _Gary W. Adamson_, Sep 21 2007