Expansion of (1-x-x^N)/((1-x)(1-x^2)(1-x^3)...(1-x^N)) for N = 7.

Terms

a(0) =1a(1) =0a(2) =1a(3) =1a(4) =2a(5) =2a(6) =4a(7) =3a(8) =5a(9) =5a(10) =7a(11) =6a(12) =9a(13) =6a(14) =8a(15) =5a(16) =5a(17) =-1a(18) =-2a(19) =-13a(20) =-18a(21) =-33a(22) =-45a(23) =-68a(24) =-86a(25) =-121a(26) =-151a(27) =-198a(28) =-244a(29) =-310