Expansion of Product_{k>=1} (1 - x^k)^19.

Terms

a(0) =1a(1) =-19a(2) =152a(3) =-627a(4) =1140a(5) =988a(6) =-9063a(7) =14212a(8) =7410a(9) =-44270a(10) =22781a(11) =38114a(12) =36176a(13) =-137256a(14) =-154850a(15) =480605a(16) =-46493a(17) =-316065a(18) =-153406a(19) =-254525a(20) =1156948a(21) =-184927a(22) =88483a(23) =-1051042a(24) =-2381650a(25) =3838874a(26) =1417039a(27) =-542146