Expansion of (-1 + Product_{k>=1} (1 + x^k)^k)^8.

Terms

a(0) =1a(1) =16a(2) =152a(3) =1072a(4) =6204a(5) =31024a(6) =138544a(7) =564824a(8) =2135902a(9) =7580944a(10) =25485560a(11) =81734696a(12) =251514840a(13) =746123304a(14) =2142114356a(15) =5971477112a(16) =16208165181a(17) =42936937488a(18) =111240873128a(19) =282363615336a(20) =703303327288