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A201474
Primes of the form 2n^2 + 5.
1
5, 7, 13, 23, 37, 103, 167, 293, 397, 653, 727, 887, 1063, 2053, 3533, 3877, 4423, 5413, 5623, 6277, 6733, 6967, 10663, 10957, 11863, 12487, 13127, 14797, 15493, 16567, 19213, 20407, 23333, 23767, 25997, 29287, 30757, 33287, 34327
OFFSET
1,1
LINKS
MATHEMATICA
Select[Table[2n^2+5, {n, 0, 700}], PrimeQ]
PROG
(Magma) [a: n in [0..400] | IsPrime(a) where a is 2*n^2+5];
CROSSREFS
Sequence in context: A038901 A260791 A155006 * A078724 A191022 A262958
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Dec 02 2011
STATUS
approved