Expansion of Product_{m>=1} (1-m*q^m)^28.

Terms

a(0) =1a(1) =-28a(2) =322a(3) =-1792a(4) =3059a(5) =18788a(6) =-109970a(7) =96232a(8) =739669a(9) =-1676136a(10) =-2594074a(11) =6667864a(12) =22486226a(13) =-26768980a(14) =-188468912a(15) =174822312a(16) =845108712a(17) =-60897844a(18) =-3216451658a(19) =-5497042096a(20) =11876402839a(21) =31175102772