%I #5 Oct 19 2017 03:14:40

%S 3,67,3,43,3,37,7,79,3,19,3,13,19,7,13,3,7,13,3,7,79,3,43,3,37,3,79,3,

%T 19,67,13,673,7,229,3,79,13,127,7,79,3,79,7,43,3,37,3,43,97,19,163,13,

%U 127,7,43,3,37,7,97,3,19,3,13,97,7,19,3,13,19,7,13,3,7,277,3,19,37,13

%N a(n) = the smallest prime p such that p+4 and q+4 are prime; q is the n-th prime after p.

%e a(2)=3 because 3+4 and 7+4 are primes.

%Y Cf. A105439, A105444, A105445.

%K nonn

%O 2,1

%A _Cino Hilliard_, May 02 2005

%E Edited by _Don Reble_, Jun 11 2007