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A027758 Primes of the form k^2 + k + 9. 4
11, 29, 191, 281, 389, 659, 821, 1901, 2459, 3089, 5861, 6329, 7841, 11351, 14051, 14771, 19469, 21179, 22961, 23879, 30809, 36299, 42239, 43481, 44741, 55469, 56891, 64271, 67349, 72101, 73721, 90911, 96419, 137279, 139511 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..35.

P. De Geest, World!Of Numbers

PROG

(MAGMA) [ a: k in [0..450] | IsPrime(a) where a is k^2+k+9 ]; // Vincenzo Librandi, Dec 29 2010

CROSSREFS

Sequence in context: A302091 A122095 A282137 * A285992 A271348 A057739

Adjacent sequences:  A027755 A027756 A027757 * A027759 A027760 A027761

KEYWORD

nonn

AUTHOR

Patrick De Geest

STATUS

approved

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Last modified March 3 14:58 EST 2021. Contains 341762 sequences. (Running on oeis4.)