OFFSET
1,2
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..1000
EXAMPLE
If n=40 then n^2 + 13 = 1613 (prime), so 40 is in the sequence.
MATHEMATICA
With[{k=13}, Select[Range[1000], PrimeQ[ #^2+k]&]]
PROG
(PARI) is(n)=isprime(n^2+13) \\ Charles R Greathouse IV, Feb 17 2017
CROSSREFS
KEYWORD
nonn
AUTHOR
Zak Seidov, Jan 13 2006
EXTENSIONS
Edited by R. J. Mathar, Aug 07 2008
STATUS
approved