Expansion of 1/((1-x)(1-x^3)(1-x^7)(1-x^11)).

Terms

a(0) =1a(1) =1a(2) =1a(3) =2a(4) =2a(5) =2a(6) =3a(7) =4a(8) =4a(9) =5a(10) =6a(11) =7a(12) =8a(13) =9a(14) =11a(15) =12a(16) =13a(17) =15a(18) =17a(19) =18a(20) =20a(21) =23a(22) =25a(23) =27a(24) =30a(25) =33a(26) =35a(27) =38a(28) =42a(29) =45