Expansion of Product_{k>=1} 1/(1 - x^k)^(d(k)-1), where d(k) = number of divisors of k (A000005).

Terms

a(0) =1a(1) =0a(2) =1a(3) =1a(4) =3a(5) =2a(6) =7a(7) =5a(8) =14a(9) =13a(10) =27a(11) =26a(12) =57a(13) =53a(14) =102a(15) =110a(16) =192a(17) =204a(18) =353a(19) =381a(20) =626a(21) =704a(22) =1094a(23) =1246a(24) =1920a(25) =2185a(26) =3252a(27) =3800a(28) =5503a(29) =6440