Expansion of (1+x^13)/((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) =12a(10) =14a(11) =16a(12) =19a(13) =22a(14) =25a(15) =29a(16) =33a(17) =37a(18) =42a(19) =47a(20) =52a(21) =58a(22) =64a(23) =70a(24) =77a(25) =84a(26) =91a(27) =99a(28) =107a(29) =115