Numbers n such that p(n), p(n)+6, p(n)+12, p(n)+18 are consecutive primes with p(n)=6*k+5 for some k, where p(n) denotes n-th prime.
54, 709, 821, 1510, 1594, 1726, 1842, 2009, 2609, 2876, 5689, 6252, 7438, 7728
2 seqfan posts
Thu Jan 1 20:44:56 CET 2009 [seqfan] Re: Christmas joke Sequences?