Expansion of Product_{k>=1} (1 - x^k)/(1 - k*x^k).

Terms

a(0) =1a(1) =0a(2) =1a(3) =2a(4) =5a(5) =6a(6) =18a(7) =20a(8) =52a(9) =76a(10) =151a(11) =214a(12) =486a(13) =638a(14) =1265a(15) =1990a(16) =3572a(17) =5288a(18) =9968a(19) =14568a(20) =26270a(21) =40246a(22) =68326a(23) =104414a(24) =182191a(25) =271892a(26) =457636a(27) =708012a(28) =1164554a(29) =1774422