OFFSET
1,1
COMMENTS
The associated primes are: 11, 23, 41, 379, 3541, ...
EXAMPLE
2 is in this sequence because 2 and prime(2) + 2*2^2 = 3 + 8 = 11 are both prime.
MATHEMATICA
Select[Prime[Range[700]], PrimeQ[Prime[#]+2#^2]&] (* Harvey P. Dale, Mar 19 2018 *)
PROG
(Magma) [n: n in {1..5000} | IsPrime(n) and IsPrime(s) where s is (2*n^2 + NthPrime(n))];
(PARI) isok(p) = isprime(p) && isprime(prime(p) + 2*p^2); \\ Michel Marcus, Apr 13 2014
CROSSREFS
KEYWORD
nonn
AUTHOR
Ilya Lopatin and Juri-Stepan Gerasimov, Apr 13 2014
STATUS
approved