a(n) = product of distinct primes of form 6k-1 that divide n.
1, 1, 1, 1, 5, 1, 1, 1, 1, 5, 11, 1, 1, 1, 5, 1, 17, 1, 1, 5, 1, 11, 23, 1, 5, 1, 1, 1, 29, 5, 1, 1
1 seqfan posts
Fri Jan 8 16:53:05 CET 2010 [seqfan] Re: Analogue of A170818; Product of distinct primes of the form 6n+1 (A002476 ) dividing n.