Expansion of (1-q)^k/Product_{j=1..k} (1-q^j) for k=8.

Terms

a(0) =1a(1) =-7a(2) =22a(3) =-41a(4) =51a(5) =-47a(6) =39a(7) =-39a(8) =49a(9) =-64a(10) =80a(11) =-95a(12) =107a(13) =-118a(14) =135a(15) =-159a(16) =180a(17) =-191a(18) =200a(19) =-220a(20) =252a(21) =-286a(22) =314a(23) =-334a(24) =349a(25) =-370a(26) =409a(27) =-461a(28) =505a(29) =-531