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A154648 Primes of the form n^2 - 13. 5
3, 23, 131, 311, 563, 887, 1283, 2903, 5171, 7043, 8087, 9203, 10391, 12983, 14387, 19031, 28211, 34583, 39191, 41603, 44087, 46643, 51971, 57587, 76163, 86423, 101111, 108887, 125303, 129587, 138371, 142871, 161591, 171383, 191831, 197123 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
Primes of the form 4n^2 - 8n - 9.
LINKS
EXAMPLE
For n=3, a(3)=3; n=7, a(7)=131; n=241, a(241)=230387
MATHEMATICA
Select[Range[4, 1000]^2-13, PrimeQ]
PROG
(Magma) [a: n in [4..600] | IsPrime(a) where a is n^2-13];
CROSSREFS
Sequence in context: A122883 A196424 A091055 * A031970 A196881 A049164
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Jan 18 2009
EXTENSIONS
Edited by N. J. A. Sloane, Jun 23 2010
STATUS
approved

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Last modified March 28 09:04 EDT 2024. Contains 371240 sequences. (Running on oeis4.)