G.f.: (1 + x^3 + x^4 + ... + x^12 + x^15)/Product_{i=1..10} (1 - x^i).

Terms

a(0) =1a(1) =1a(2) =2a(3) =4a(4) =7a(5) =11a(6) =18a(7) =27a(8) =41a(9) =60a(10) =87a(11) =122a(12) =172a(13) =235a(14) =320a(15) =430a(16) =572a(17) =751a(18) =982a(19) =1268a(20) =1629a(21) =2074a(22) =2625a(23) =3297a(24) =4123a(25) =5118a(26) =6324a(27) =7771a(28) =9506a(29) =11567