1,2

Table of n, a(n) for n=1..78.

17=3*P(2)#-1 and 19=3*P(2)#+1 are twin primes, so 2 is in the

sequence (the 4th term).

Cf. A002110, A087732.

Sequence in context: A072912 A025786 A085886 * A276797 A166872 A283480

Adjacent sequences: A088673 A088674 A088675 * A088677 A088678 A088679

nonn

Jud McCranie, Oct 04 2003

More terms from Ray Chandler, Oct 05 2003

approved