Product of primes < n that do not divide n.

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =6a(5) =5a(6) =30a(7) =105a(8) =70a(9) =21a(10) =210a(11) =385a(12) =2310a(13) =2145a(14) =2002a(15) =15015a(16) =30030a(17) =85085a(18) =510510a(19) =969969a(20) =461890a(21) =440895a(22) =9699690a(23) =37182145a(24) =44618574a(25) =8580495a(26) =74364290a(27) =15935205a(28) =223092870a(29) =215656441