G.f.: 1/((1-t^8)*(1-t)*(1-t^3)*(1-t^5)*(1-t^7)*(1-t^9)*(1-t^11)*(1-t^13)*(1-t^15)).

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =3a(6) =4a(7) =5a(8) =7a(9) =9a(10) =11a(11) =14a(12) =17a(13) =21a(14) =26a(15) =32a(16) =39a(17) =46a(18) =56a(19) =66a(20) =78a(21) =93a(22) =109a(23) =128a(24) =150a(25) =174a(26) =202a(27) =234a(28) =269a(29) =310