OFFSET
1,3
COMMENTS
Both n and n+1 are terms in A092968.
LINKS
Zak Seidov, Table of n, a(n) for n = 1..10000
MATHEMATICA
Select[Range[0, 600], PrimeQ[2 #^2 + 11] && PrimeQ[2 (# + 1)^2 + 11] &] (* Vincenzo Librandi, Jul 26 2015 *)
PROG
(PARI) isok(n) = isprime(2*n^2+11) && isprime(2*(n+1)^2+11); \\ Michel Marcus, Jul 26 2015
(Magma) [n: n in [0..600]| IsPrime( 2*n^2+11) and IsPrime(2*(n+1)^2+11)]; // Vincenzo Librandi, Jul 26 2015
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Zak Seidov, Jul 23 2015
STATUS
approved