|
%I #9 Sep 08 2022 08:44:46
%S 1,28,434,4928,45619,363804,2584078,16712728,99967861,559436136,
%T 2954968758,14835042600,71185664242,327991293140,1456679962528,
%U 6256129706904,26054952884072,105476694483636,415919297844582
%N Expansion of Product_{m>=1} (1+m*q^m)^28.
%H G. C. Greubel, <a href="/A022656/b022656.txt">Table of n, a(n) for n = 0..1000</a>
%t With[{nmax=50}, CoefficientList[Series[Product[(1+m*q^m)^28,{m,1,nmax}],{q,0,nmax}],q]] (* _G. C. Greubel_, Jul 18 2018 *)
%o (PARI) m=50; q='q+O('q^m); Vec(prod(n=1,m,(1+n*q^n)^28)) \\ _G. C. Greubel_, Jul 18 2018
%o (Magma) Coefficients(&*[(1+m*x^m)^28:m in [1..40]])[1..50] where x is PolynomialRing(Integers()).1; // _G. C. Greubel_, Jul 18 2018
%K nonn
%O 0,2
%A _N. J. A. Sloane_
|
