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A121226 Positive integers n for which n^2 + n + 1712329866165608771 is prime. 1
3, 14, 19, 21, 27, 38, 39, 57, 59, 63, 64, 69, 70, 82, 86, 88, 93, 96, 102, 103, 110, 115, 119, 120, 124, 130, 138, 140, 146, 148, 152, 155, 158, 159, 160, 161, 163, 167, 168, 175, 177, 178, 179, 187, 193, 195, 196, 197, 198, 202, 213, 215, 217, 229, 230, 234, 235, 240, 245, 248, 253, 254, 263, 265, 267, 275, 280, 282, 283, 285, 292, 294, 297, 302, 305, 307, 311, 312, 315, 317, 321, 324, 325, 329, 333 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Robert Israel, Table of n, a(n) for n = 1..10000

R. A. Mollin, Prime-Producing Quadratics, The American Mathematical Monthly, Vol. 104, No. 6 (Jun. - Jul., 1997), pp. 529-544.

MAPLE

select(n -> isprime(n^2 + n + 1712329866165608771), [$1..10^4]); # Robert Israel, Jan 05 2015

CROSSREFS

Sequence in context: A134767 A022125 A121459 * A063633 A108933 A271384

Adjacent sequences:  A121223 A121224 A121225 * A121227 A121228 A121229

KEYWORD

nonn

AUTHOR

G. L. Honaker, Jr., Aug 20 2006

STATUS

approved

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Last modified July 23 14:59 EDT 2017. Contains 289688 sequences.