OFFSET
1,1
COMMENTS
Primes p such that 2*p is in A086285 (Numbers n such that 1+2n+3n^2 is prime).
LINKS
Harvey P. Dale, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Prime[Range[400]], PrimeQ[1+4#+12#^2]&] (* Harvey P. Dale, Mar 11 2022 *)
PROG
(Magma) [ p: p in PrimesUpTo(5000) | IsPrime(1+4*p+12*p^2)] // Vincenzo Librandi, Jan 26 2011
CROSSREFS
KEYWORD
nonn
AUTHOR
Zak Seidov, Oct 20 2006
STATUS
approved