a(n) = [x^n] Product_{k>=2} 1/(1 - x^k)^n.

Terms

a(0) =1a(1) =0a(2) =2a(3) =3a(4) =14a(5) =30a(6) =119a(7) =301a(8) =1078a(9) =3036a(10) =10242a(11) =30624a(12) =100451a(13) =310128a(14) =1004817a(15) =3158343a(16) =10182982a(17) =32345186a(18) =104145896a(19) =332953929a(20) =1072383374a(21) =3442913407a(22) =11100120528a(23) =35742258497a(24) =115377720235a(25) =372326184555