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 A364313 #12 Jul 23 2023 18:23:36 %S A364313 2,2,7,13,44,95,231 %N A364313 Length of row n of the irregular triangle A364312. %C A364313 This gives the total number a(n) of nonnegative coefficients of the integer polynomials of degree k = 1, 2, ..., n-1 of Cantor's height n, for n >= 2, and for n = 1 the degree is k = 1, with polynomial 1*x. %C A364313 Not all rows of A364312 have entries for k = n-1, e.g., for n = 4 the k = 3 entry [1, 0, 0, 1] is not recorded because both x^3 + 1 and the signed version x^3 - 1 factorize. Similar cases appear for n = 6 and n = 7. %e A364313 a(3) = 7 because row n = 3 of A364312 is 2, 1, 1, 2, 1, 0, 1, from [2, 1], [1, 2]; [1, 0, 1] for the polynomials 2*x + 1, x + 2, x^2 + 1. %Y A364313 Cf. A364312. %K A364313 nonn,more %O A364313 1,1 %A A364313 _Wolfdieter Lang_, Jul 19 2023