Expansion of Product_{k>=1} ((1 - k*x^k) / (1 + k*x^k))^k.

Terms

a(0) =1a(1) =-2a(2) =-6a(3) =-4a(4) =22a(5) =72a(6) =84a(7) =-32a(8) =-474a(9) =-1310a(10) =-1728a(11) =60a(12) =6420a(13) =18712a(14) =31080a(15) =24992a(16) =-34074a(17) =-186468a(18) =-430138a(19) =-650612a(20) =-496296a(21) =687120a(22) =3599652a(23) =8413968a(24) =13374148a(25) =12772246a(26) =-3910080a(27) =-50592280a(28) =-136089520a(29) =-244815336