OFFSET
1,2
COMMENTS
Contains the even terms of A066049 divided by 2. - _R. J. Mathar_, Sep 04 2008
MATHEMATICA
p = 8; a = {}; Do[k = p x^2 - 1; If[PrimeQ[k], AppendTo[a, x]], {x, 1, 1000}]; a
PROG
(PARI) is(n)=isprime(8*n^2-1) \\ _Charles R Greathouse IV_, Feb 17 2017
CROSSREFS
KEYWORD
nonn
AUTHOR
_Artur Jasinski_, Sep 02 2008
STATUS
approved