Expansion of (1+x^9)/((1-x)*(1-x^2)*(1-x^3)).

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =4a(5) =5a(6) =7a(7) =8a(8) =10a(9) =13a(10) =15a(11) =18a(12) =22a(13) =25a(14) =29a(15) =34a(16) =38a(17) =43a(18) =49a(19) =54a(20) =60a(21) =67a(22) =73a(23) =80a(24) =88a(25) =95a(26) =103a(27) =112a(28) =120a(29) =129