Expansion of Product_{m>=1} (1 + x^m)^23.

Terms

a(0) =1a(1) =23a(2) =276a(3) =2323a(4) =15479a(5) =87101a(6) =430445a(7) =1917349a(8) =7839849a(9) =29824583a(10) =106646308a(11) =361327079a(12) =1167406906a(13) =3615602714a(14) =10780913004a(15) =31061653709a(16) =86741652761a(17) =235404301651a(18) =622271232287