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

Terms

a(0) =1a(1) =1a(2) =2a(3) =4a(4) =5a(5) =8a(6) =13a(7) =17a(8) =24a(9) =36a(10) =47a(11) =64a(12) =89a(13) =115a(14) =152a(15) =204a(16) =260a(17) =336a(18) =438a(19) =552a(20) =702a(21) =896a(22) =1117a(23) =1400a(24) =1758a(25) =2171a(26) =2688a(27) =3332a(28) =4079a(29) =5000