Expansion of Product_{k>=1} 1/((1 - x^k) * (1 - x^(2*k)) * (1 - x^(3*k))).

Terms

a(0) =1a(1) =1a(2) =3a(3) =5a(4) =10a(5) =15a(6) =29a(7) =42a(8) =72a(9) =107a(10) =170a(11) =246a(12) =382a(13) =541a(14) =807a(15) =1139a(16) =1650a(17) =2292a(18) =3267a(19) =4479a(20) =6261a(21) =8518a(22) =11716a(23) =15771a(24) =21449a(25) =28599a(26) =38430a(27) =50876a(28) =67654a(29) =88854