Triply balanced primes: primes which are averages of both their immediate neighbor, their second neighbors and their third neighbors.
683783, 1056317, 1100261, 2241709, 2815301, 4746359, 10009049, 12003209
2 seqfan posts
Fri Mar 26 03:51:16 CET 2010 [seqfan] Re: Palindromic Subsequences Of Prime Differences