Expansion of 1/((1-x)(1-x^4)(1-x^9)(1-x^12)).

Terms

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