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

Terms

a(0) =1a(1) =-1a(2) =-2a(3) =-1a(4) =-1a(5) =5a(6) =1a(7) =13a(8) =4a(9) =0a(10) =2a(11) =-8a(12) =-61a(13) =-31a(14) =13a(15) =-156a(16) =21a(17) =11a(18) =223a(19) =92a(20) =91a(21) =426a(22) =972a(23) =165a(24) =141a(25) =-1126a(26) =440a(27) =1294a(28) =-4684a(29) =-2755