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A201487 Primes of the form 5n^2 + 9. 1
29, 89, 509, 1289, 3389, 3929, 7229, 8009, 9689, 10589, 16829, 24509, 32009, 33629, 38729, 44189, 48029, 60509, 67289, 81929, 84509, 92489, 98009, 100829, 118589, 134489, 158429, 188189, 200009, 216329, 224729, 228989, 242009, 250889 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
LINKS
MATHEMATICA
Select[Table[5n^2+9, {n, 0, 1000}], PrimeQ]
PROG
(Magma) [a: n in [0..600] | IsPrime(a) where a is 5*n^2+9];
CROSSREFS
Sequence in context: A142791 A325073 A152294 * A317537 A107940 A039416
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Dec 03 2011
STATUS
approved

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Last modified May 27 03:56 EDT 2024. Contains 372847 sequences. (Running on oeis4.)