%N Numbers n such that n^2+n+3 and n^2+n-3 are both prime.
%e n=4 is in the list because 20+-3 are primes. n=7 is in the list because 56+-3 are primes.
%Y Cf. A088485
%A _Vladimir Joseph Stephan Orlovsky_, Jun 20 2009
%E Definition rephrased by _R. J. Mathar_, Jun 27 2009