Expansion of (Product_{j>=1} (1-(-x)^j) - 1)^13 in powers of x.

Terms

a(0) =1a(1) =-13a(2) =78a(3) =-286a(4) =702a(5) =-1131a(6) =845a(7) =1300a(8) =-5928a(9) =11583a(10) =-13715a(11) =5915a(12) =15834a(13) =-47477a(14) =73658a(15) =-71201a(16) =20436a(17) =79391a(18) =-198796a(19) =280345a(20) =-258557a(21) =92807a(22) =200850a(23) =-536341a(24) =773916a(25) =-768222a(26) =432705a(27) =204477a(28) =-979628a(29) =1626196