Quadruply balanced primes: primes which are averages of both their immediate neighbor, their second neighbors, their third neighbors and their fourth neighbors.
98303927, 580868459, 784857323, 857636141, 909894647, 951508837
2 seqfan posts
Fri Mar 26 03:51:16 CET 2010 [seqfan] Re: Palindromic Subsequences Of Prime Differences