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

Terms

a(0) =1a(1) =0a(2) =1a(3) =1a(4) =1a(5) =2a(6) =3a(7) =3a(8) =4a(9) =5a(10) =7a(11) =8a(12) =12a(13) =13a(14) =17a(15) =21a(16) =25a(17) =32a(18) =39a(19) =46a(20) =58a(21) =68a(22) =83a(23) =99a(24) =121a(25) =141a(26) =171a(27) =201a(28) =239a(29) =282