Psi_c(n), where Product_{k>1} 1/(1-1/k^s)^phi(k) = Sum_{k>0} psi_c(k)/k^s.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =4a(5) =4a(6) =6a(7) =7a(8) =9a(9) =8a(10) =10a(11) =12a(12) =12a(13) =12a(14) =16a(15) =18a(16) =16a(17) =19a(18) =18a(19) =24a(20) =24a(21) =20a(22) =22a(23) =32a(24) =30a(25) =24a(26) =34a(27) =36a(28) =28a(29) =40