Expansion of Product_{k>=1} 1/(1 - psi(k)*x^k), where psi() is the Dedekind psi function (A001615).

Terms

a(0) =1a(1) =1a(2) =4a(3) =8a(4) =23a(5) =41a(6) =114a(7) =200a(8) =491a(9) =909a(10) =2036a(11) =3710a(12) =8235a(13) =14743a(14) =31058a(15) =56538a(16) =115435a(17) =207401a(18) =417876a(19) =745578a(20) =1470371a(21) =2626489a(22) =5086108a(23) =9030162a(24) =17347019a(25) =30620651a(26) =58060380a(27) =102426652a(28) =192288399a(29) =337633825