a(n) = Product_{d|n, d<n} prime(A286622(d)-1).

Terms

a(0) =1a(1) =2a(2) =2a(3) =4a(4) =2a(5) =12a(6) =2a(7) =8a(8) =6a(9) =20a(10) =2a(11) =72a(12) =2a(13) =28a(14) =30a(15) =16a(16) =2a(17) =180a(18) =2a(19) =200a(20) =42a(21) =44a(22) =2a(23) =432a(24) =10a(25) =44a(26) =30a(27) =392a(28) =2a(29) =11700