Expansion of 1/((1-x)*(1-x^2)*(1-x^9)*(1-x^12)).

Terms

a(0) =1a(1) =1a(2) =2a(3) =2a(4) =3a(5) =3a(6) =4a(7) =4a(8) =5a(9) =6a(10) =7a(11) =8a(12) =10a(13) =11a(14) =13a(15) =14a(16) =16a(17) =17a(18) =20a(19) =21a(20) =24a(21) =26a(22) =29a(23) =31a(24) =35a(25) =37a(26) =41a(27) =44a(28) =48a(29) =51