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 A022730 #12 Sep 08 2022 08:44:46 %S A022730 1,6,33,146,594,2196,7687,25410,80664,246258,728610,2093334,5865853, %T A022730 16057998,43063812,113293158,292928448,745216692,1867840830, %U A022730 4616732712,11264133069,27149243724,64691795178 %N A022730 Expansion of Product_{m>=1} 1/(1 - m*q^m)^6. %H A022730 G. C. Greubel, <a href="/A022730/b022730.txt">Table of n, a(n) for n = 0..1000</a> %F A022730 G.f.: exp(6*Sum_{j>=1} Sum_{k>=1} k^j*x^(j*k)/j). - _Ilya Gutkovskiy_, Feb 07 2018 %t A022730 With[{nmax = 50}, CoefficientList[Series[Product[(1 - k*q^k)^-6, {k, 1, nmax}], {q, 0, nmax}], q]] (* _G. C. Greubel_, Jul 25 2018 *) %o A022730 (PARI) m=50; q='q+O('q^m); Vec(prod(n=1,m,(1-n*q^n)^-6)) \\ _G. C. Greubel_, Jul 25 2018 %o A022730 (Magma) n:=50; R<x>:=PowerSeriesRing(Integers(), n); Coefficients(R!(&*[(1/(1-m*x^m))^6:m in [1..n]])); // _G. C. Greubel_, Jul 25 2018 %Y A022730 Column k=6 of A297328. %K A022730 nonn %O A022730 0,2 %A A022730 _N. J. A. Sloane_