1,1

More precisely, a(n)-2 and a(n) + 2n are two consecutive primes and are the smallest successive prime pair with a difference 2(n+1).

Table of n, a(n) for n=1..37.

This is a trivial variation of A000230 and A045881.

See A189118 for another version.

Sequence in context: A147428 A147436 A189118 * A075064 A147332 A147460

Adjacent sequences: A075064 A075065 A075066 * A075068 A075069 A075070

nonn

Amarnath Murthy, Sep 08 2002

More terms from Matthew Conroy, Sep 10 2002

approved