Expansion of Product_{m>=1} 1/(1 - m*q^m)^9.

Terms

a(0) =1a(1) =9a(2) =63a(3) =354a(4) =1764a(5) =7947a(6) =33294a(7) =131049a(8) =490437a(9) =1756243a(10) =6055749a(11) =20190402a(12) =65342031a(13) =205853535a(14) =632948256a(15) =1903369146a(16) =5608257129a(17) =16216492509a(18) =46080035361a(19) =128829484620a(20) =354757096107a(21) =963099596421