a(n) = A077194(n)/n.

Terms

a(0) =1a(1) =5a(2) =1a(3) =25a(4) =2a(5) =2a(6) =143a(7) =125a(8) =1a(9) =1a(10) =1a(11) =1a(12) =77a(13) =715a(14) =2a(15) =625a(16) =5882353a(17) =1a(18) =52631579a(19) =5a(20) =1a(21) =5a(22) =4347826087a(23) =5a(24) =4a(25) =385a(26) =1a(27) =3575a(29) =1a(30) =322581