Expansion of Product_{k>=1} 1/(1 - x^k)^(k*(5*k^2-5*k+2)/2).

Terms

a(0) =1a(1) =1a(2) =13a(3) =61a(4) =263a(5) =1094a(6) =4578a(7) =18076a(8) =69815a(9) =262242a(10) =965342a(11) =3480006a(12) =12322360a(13) =42896002a(14) =147062818a(15) =497000146a(16) =1657470977a(17) =5459160063a(18) =17772284155a(19) =57225458626a(20) =182362100816a(21) =575463112191