Fortunate numbers: least m>1 such that m+prime(n)# is prime, where p# denotes the product of the primes <= p.
3, 5, 7, 13, 23, 17, 19, 23, 37, 61, 67, 61, 71, 47, 107, 59, 61, 109, 89, 103, 79, 151
1 seqfan posts
Wed Dec 14 22:46:31 CET 2011 [seqfan] Density of Fortunate primes