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 A022690 #10 Sep 08 2022 08:44:46
%S A022690 1,-30,375,-2350,5625,18594,-159470,264000,897090,-3531910,-1435527,
%T A022690 16983900,18552080,-93541590,-225801585,676209374,1172571840,
%U A022690 -2433574980,-6300652790,673571550,37882244124
%N A022690 Expansion of Product_{m>=1} (1-m*q^m)^30.
%H A022690 G. C. Greubel, <a href="/A022690/b022690.txt">Table of n, a(n) for n = 0..1000</a>
%t A022690 With[{nmax = 50}, CoefficientList[Series[Product[(1 - k*q^k)^30, {k, 1, nmax}], {q, 0, nmax}], q]] (* _G. C. Greubel_, Jul 19 2018 *)
%o A022690 (PARI) m=50; q='q+O('q^m); Vec(prod(n=1,m,(1-n*q^n)^30)) \\ _G. C. Greubel_, Jul 19 2018
%o A022690 (Magma) Coefficients(&*[(1-m*x^m)^30:m in [1..40]])[1..40] where x is PolynomialRing(Integers()).1; // _G. C. Greubel_, Jul 19 2018
%K A022690 sign
%O A022690 0,2
%A A022690 _N. J. A. Sloane_