G.f.: (1 + x^4 + x^5 + x^6 + x^10 + x^11 + x^12 + x^16)/Product_{i=1..8} (1 - x^i).

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =6a(5) =9a(6) =15a(7) =21a(8) =32a(9) =44a(10) =64a(11) =87a(12) =122a(13) =161a(14) =217a(15) =282a(16) =372a(17) =475a(18) =613a(19) =772a(20) =978a(21) =1215a(22) =1515a(23) =1860a(24) =2290a(25) =2781a(26) =3382a(27) =4068a(28) =4896a(29) =5836