a(n) = largest prime < p(n) such that p(n) - a(n) is a power of 2, where p(n) is the n-th prime; a(n) = 0 if no such prime exists.
2, 3, 5, 7, 11, 13, 17, 19, 13, 29, 29, 37, 41, 43, 37, 43, 59, 59, 67, 71, 71, 79, 73, 89
3 seqfan posts
Sun Nov 23 20:26:57 CET 2008 [seqfan] Re: Differences Between Some Primes (Stupid Question?)
Sun Nov 23 19:59:50 CET 2008 [seqfan] Re: Differences Between Some Primes (Stupid Question?)
Sun Nov 23 19:43:14 CET 2008 [seqfan] Differences Between Some Primes (Stupid Question?)
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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