OFFSET
1,1
COMMENTS
Half of the even terms of A089001. - R. J. Mathar, Apr 09 2011
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 1..1000
MATHEMATICA
Select[Range[600], PrimeQ[8#^2+1]&] (* Harvey P. Dale, Apr 11 2012 *)
PROG
(Magma) [n: n in [1..1800]|IsPrime(8*n^2 + 1)]; - Vincenzo Librandi, 04 2011
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Apr 04 2011
STATUS
approved