Expansion of Product_{m>=1} (1 + m*q^m)^-2.

Terms

a(0) =1a(1) =-2a(2) =-1a(3) =-2a(4) =9a(5) =-2a(6) =10a(7) =-16a(8) =38a(9) =-98a(10) =53a(11) =-116a(12) =340a(13) =-434a(14) =463a(15) =-990a(16) =2378a(17) =-2792a(18) =3660a(19) =-7058a(20) =11454a(21) =-18900a(22) =24104a(23) =-36206a(24) =81623a(25) =-119400a(26) =128194a(27) =-248062a(28) =447066a(29) =-576154