Expansion of Sum_{i = p*q, p prime, q prime} x^i/(1 - x^i) / Product_{j>=1} (1 - x^j).

Terms

a(0) =0a(1) =0a(2) =0a(3) =1a(4) =1a(5) =3a(6) =4a(7) =8a(8) =12a(9) =20a(10) =28a(11) =45a(12) =62a(13) =92a(14) =127a(15) =181a(16) =244a(17) =340a(18) =452a(19) =614a(20) =809a(21) =1077a(22) =1401a(23) =1841a(24) =2371a(25) =3071a(26) =3923a(27) =5026a(28) =6363a(29) =8078