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%I #6 Mar 31 2012 10:32:41
%S 23,53,3137,5347,5953,6761,8389,137131,151157,157163,167173,179173,
%T 199211,211199,223211,233239,239233,257263,263257,263269,271277,
%U 331337,353359,359353,373379,433439,467479,509521,523541,541523,541547,593587
%N Consecutive prime pairs which after concatenation are prime (ascending or descending order).
%C For the range above the prime concatenations occur after a mean of 3.1579 trials. Some primes are interlocking, as many as three in succession.
%F Select consecutive prime pairs, concatenate and test for primality (ascending and descending order)
%e 5347 is a member: 53 and 47, prime; 4753 was also tested, but is composite.
%Y Cf. A088784.
%K easy,nonn,base
%O 1,1
%A _Enoch Haga_, Sep 30 2007
%E Edited by _Charles R Greathouse IV_, Apr 26 2010
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