Expansion of Product_{m>=1} (1+q^m)^(-18).

Terms

a(0) =1a(1) =-18a(2) =153a(3) =-834a(4) =3384a(5) =-11340a(6) =33729a(7) =-92430a(8) =236727a(9) =-572120a(10) =1318743a(11) =-2922948a(12) =6259641a(13) =-13000770a(14) =26283159a(15) =-51879720a(16) =100210041a(17) =-189775800a(18) =352975681a(19) =-645780060a(20) =1163610432a(21) =-2067225594a(22) =3624593265a(23) =-6277838652