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%I #7 Aug 20 2019 16:21:24
%S 1,1,2,5,12,20,42,75,141,259,466,799,1427,2443,4169,7049,11863,19605,
%T 32518,53184,86579,140018,225380,359739,572864,905903,1426270,2234952,
%U 3488313,5416403,8383226,12917257,19831763,30334937,46245977,70242043,106371686
%N Expansion of Product_{k>=1} (Product_{j=1..k} (1 + x^(k*j))^(k*j)).
%H Vaclav Kotesovec, <a href="/A327065/b327065.txt">Table of n, a(n) for n = 0..10000</a>
%t nmax = 40; CoefficientList[Series[Product[Product[(1+x^(k*j))^(k*j), {j, 1, Min[k, nmax/k]}], {k, 1, nmax}], {x, 0, nmax}], x]
%Y Cf. A028377, A192065, A211856, A294842, A280541, A327063, A327064, A327068.
%K nonn
%O 0,3
%A _Vaclav Kotesovec_, Aug 19 2019