Expansion of Product_{k>0} 1/(1 - k*(k+1)/2 * x^(k*(k+1)/2)).

Terms

a(0) =1a(1) =1a(2) =1a(3) =4a(4) =4a(5) =4a(6) =19a(7) =19a(8) =19a(9) =64a(10) =74a(11) =74a(12) =245a(13) =275a(14) =275a(15) =803a(16) =953a(17) =953a(18) =2753a(19) =3203a(20) =3303a(21) =8814a(22) =10524a(23) =10824a(24) =28653a(25) =33933a(26) =35433a(27) =89586a(28) =107614a(29) =112114