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%I #10 Sep 08 2022 08:44:46
%S 1,-26,273,-1326,1274,16900,-70369,4498,520884,-574470,-2159898,
%T 712062,16058549,6811374,-109730712,-34094866,371654686,547508416,
%U -667428372,-4233187348,-477050379,12477952396,24147501092
%N Expansion of Product_{m>=1} (1-m*q^m)^26.
%H G. C. Greubel, <a href="/A022686/b022686.txt">Table of n, a(n) for n = 0..1000</a>
%t With[{nmax = 50}, CoefficientList[Series[Product[(1 - k*q^k)^26, {k, 1, nmax}], {q, 0, nmax}], q]] (* _G. C. Greubel_, Jul 19 2018 *)
%o (PARI) m=50; q='q+O('q^m); Vec(prod(n=1,m,(1-n*q^n)^26)) \\ _G. C. Greubel_, Jul 19 2018
%o (Magma) Coefficients(&*[(1-m*x^m)^26:m in [1..40]])[1..40] where x is PolynomialRing(Integers()).1; // _G. C. Greubel_, Jul 19 2018
%K sign
%O 0,2
%A _N. J. A. Sloane_