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%I #5 May 31 2013 12:41:40
%S 2,3,5,6,7,8,11,17,42,66,76,93,139,157
%N Numbers n such that n! + second prime after n! is prime.
%C Because numbers of the form: (n! + prime) are divisible by all primes <= n that mean that first prime number can have form n! + next prime after n! and no primes of the form n! + k for k > 1 and k < next prime after n!
%t a = {}; Do[If[PrimeQ[n! + NextPrime[n!,2]], AppendTo[a, n]], {n, 1, 200]; a (*Artur Jasinski*)
%Y Cf. A002981, A151892, A151893, A151903.
%K nonn
%O 1,1
%A _Artur Jasinski_, Apr 12 2008
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