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A201713
Primes of the form 2n^2 - 5.
3
3, 13, 67, 157, 283, 643, 877, 1453, 3037, 4603, 5197, 5827, 7933, 8707, 12163, 14107, 17293, 18427, 19597, 30253, 34843, 38083, 41467, 56443, 58477, 62653, 66973, 71437, 83227, 93307, 95917, 98563, 103963, 109507, 118093, 123997
OFFSET
1,1
LINKS
MATHEMATICA
Select[Table[2n^2-5, {n, 2, 1000}], PrimeQ]
PROG
(Magma) [a: n in [2..300] | IsPrime(a) where a is 2*n^2-5];
CROSSREFS
Sequence in context: A110530 A142979 A302303 * A343204 A333083 A298611
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Dec 04 2011
STATUS
approved