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A201705 Primes of the form 8n^2 + 9. 1
17, 41, 137, 401, 521, 809, 977, 1361, 2897, 3209, 3881, 4241, 5009, 5417, 6737, 9257, 12809, 13457, 15497, 16937, 17681, 22481, 25097, 26921, 33809, 39209, 42641, 47441, 49937, 57809, 61961, 63377, 89897, 100361, 102161, 123017, 135209 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 1..5000

MATHEMATICA

Select[Table[8n^2+9, {n, 0, 700}], PrimeQ]

PROG

(MAGMA) [a: n in [0..300] | IsPrime(a) where a is 8*n^2+9];

CROSSREFS

Sequence in context: A188661 A205171 A070183 * A165668 A269425 A164602

Adjacent sequences:  A201702 A201703 A201704 * A201706 A201707 A201708

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Dec 04 2011

STATUS

approved

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Last modified August 2 02:53 EDT 2021. Contains 346409 sequences. (Running on oeis4.)