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 A321892 #5 Nov 21 2018 09:24:17 %S A321892 1,1,0,1,1,1,0,0,1,0,1,2,0,0,0,0,1,1,1,1,0,1,0,1,2,0,0,0,1,3,0,0,0,0, %T A321892 0,0,1,0,1,1,2,3,0,0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,1,4,0,0,0,1,0,2,5 %N A321892 Irregular triangle read by rows where T(H(u),H(v)) is the coefficient of f(v) in s(u), where H is Heinz number, f is forgotten symmetric functions, and s is Schur functions. %C A321892 Row n has length A000041(A056239(n)). %C A321892 The Heinz number of an integer partition (y_1, ..., y_k) is prime(y_1) * ... * prime(y_k). %H A321892 Wikipedia, <a href="https://en.wikipedia.org/wiki/Symmetric_polynomial">Symmetric polynomial</a> %e A321892 Triangle begins: %e A321892 1 %e A321892 1 %e A321892 0 1 %e A321892 1 1 %e A321892 0 0 1 %e A321892 0 1 2 %e A321892 0 0 0 0 1 %e A321892 1 1 1 %e A321892 0 1 0 1 2 %e A321892 0 0 0 1 3 %e A321892 0 0 0 0 0 0 1 %e A321892 0 1 1 2 3 %e A321892 0 0 0 0 0 0 0 0 0 0 1 %e A321892 0 0 0 0 0 1 4 %e A321892 0 0 0 1 0 2 5 %e A321892 For example, row 15 gives: s(32) = f(221) + 2f(2111) + 5f(11111). %Y A321892 Row sums are A321893. %Y A321892 Cf. A000085, A008480, A056239, A082733, A124795, A153452, A296188, A300121, A321742-A321765. %K A321892 nonn,more,tabf %O A321892 1,12 %A A321892 _Gus Wiseman_, Nov 20 2018