Expansion of Product_{r = 1 or not a perfect power} 1/(1 - x^r).

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =4a(5) =6a(6) =9a(7) =12a(8) =16a(9) =21a(10) =28a(11) =36a(12) =48a(13) =61a(14) =78a(15) =99a(16) =124a(17) =156a(18) =195a(19) =241a(20) =299a(21) =367a(22) =450a(23) =549a(24) =670a(25) =811a(26) =982a(27) =1183a(28) =1422a(29) =1704