Expansion of Product_{n>=1} (1-x^n)^5.

Terms

a(0) =1a(1) =-5a(2) =5a(3) =10a(4) =-15a(5) =-6a(6) =-5a(7) =25a(8) =15a(9) =-20a(10) =9a(11) =-45a(12) =-5a(13) =25a(14) =20a(15) =10a(16) =15a(17) =20a(18) =-50a(19) =-35a(20) =-30a(21) =55a(22) =-50a(23) =15a(24) =80a(25) =1a(26) =50a(27) =-35a(28) =-45a(29) =-15