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 A369986 #8 Feb 07 2024 11:52:37
%S A369986 1,1,1,1,1,1,1,2,2,3,3,4,6,7,8,11,14,12,14,20,20,28,40,54,63,103,100,
%T A369986 103,129,198,225,295,363,286,433,815,629,796,1236,1363,1258,1723,2791,
%U A369986 3873,5244,6409,6236,9724,13800,18153,22993,23120,28173,49135,46042
%N A369986 Maximum of the absolute value of the coefficients of (1 - x) * (1 - x^4) * (1 - x^9) * ... * (1 - x^(n^2)).
%t A369986 Table[Max[Abs[CoefficientList[Product[(1 - x^(k^2)), {k, 1, n}], x]]], {n, 0, 54}]
%o A369986 (PARI) a(n) = vecmax(apply(abs, Vec(prod(i=1, n, (1-x^(i^2)))))); \\ _Michel Marcus_, Feb 07 2024
%Y A369986 Cf. A000290, A160089, A160235, A276516, A369728.
%K A369986 nonn
%O A369986 0,8
%A A369986 _Ilya Gutkovskiy_, Feb 07 2024