a(n) = Product_{d|n, d<n} prime(A318881(d)), where A318881(d) records the prime signature of A000010(d).
A319342
a(n) = Product_{d|n, d<n} prime(A318881(d)), where A318881(d) records the prime signature of A000010(d).
Terms
- a(0) =1a(1) =2a(2) =2a(3) =4a(4) =2a(5) =12a(6) =2a(7) =12a(8) =6a(9) =20a(10) =2a(11) =108a(12) =2a(13) =28a(14) =30a(15) =60a(16) =2a(17) =252a(18) =2a(19) =300a(20) =42a(21) =28a(22) =2a(23) =2700a(24) =10a(25) =44a(26) =42a(27) =588a(28) =2a(29) =11700
External references
- oeis: A319342