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Primes p such that either p+5/2+-3/2 is prime.
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%I #3 Mar 30 2012 18:52:38

%S 2,3,7,13,19,37,43,67,79,97,103,109,127,163,193,223,229,277,307,313,

%T 349,379,397,439,457,463,487,499,613,643,673,739,757,769,823,853,859,

%U 877,883,907,937,967,1009,1087,1093,1213,1279,1297,1303,1423,1429,1447,1483

%N Primes p such that either p+5/2+-3/2 is prime.

%C Two together with primes p such that p and p+4 are both primes.

%e a(1)=2 because 2+5/2-3/2=3(prime) and 2+5/2+3/2=6(nonprime); a(2)=3 because 3+5/2-3/2=4(nonprime) and 3+5/2+3/2=7(prime).

%Y Cf. A023200.

%K nonn

%O 1,1

%A _Juri-Stepan Gerasimov_, Jan 29 2010

%E Entries checked by _R. J. Mathar_, May 02 2010