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

Terms

a(0) =1a(1) =-9a(2) =18a(3) =51a(4) =-171a(5) =-117a(6) =249a(7) =1251a(8) =531a(9) =-5599a(10) =-3006a(11) =-2295a(12) =20664a(13) =50508a(14) =-6354a(15) =-78597a(16) =-292887a(17) =-105273a(18) =268957a(19) =792414a(20) =1974312a(21) =825753a(22) =-2605185a(23) =-9778671a(24) =-9956433a(25) =-4944978a(26) =19214991a(27) =57418523a(28) =78518664a(29) =60044976