1,1

Pierre CAMI, Table of n, a(n) for n = 1..5000

For n=1 we can take p = 3 and p = 5, with twin primes (3 5) and (5 7) and 3 and 5 are > 2 and < 6 so a(1)=2

Sequence in context: A239302 A256983 A080234 * A225192 A262432 A135694

Adjacent sequences: A136046 A136047 A136048 * A136050 A136051 A136052

nonn

Pierre CAMI, Dec 12 2007; corrected Jan 24 2008

Verified by Don Reble, Jun 22 2008, including the b-file.

approved