Expansion of Product_{m >= 1} (1-m*q^m)^13.

Terms

a(0) =1a(1) =-13a(2) =52a(3) =13a(4) =-546a(5) =676a(6) =1911a(7) =-962a(8) =-9282a(9) =-13624a(10) =53027a(11) =57408a(12) =-48334a(13) =-222912a(14) =-558402a(15) =517803a(16) =1776723a(17) =2996227a(18) =-1100554a(19) =-14813461a(20) =-12542478a(21) =-3043521a(22) =50552853a(23) =110798116a(24) =84474624a(25) =-114111322a(26) =-650898679a(27) =-771617782a(28) =-206121175a(29) =1974416808