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A057221 Numbers n such that 2^n + 19 is prime. 1
2, 6, 30, 162, 654, 714, 1370, 1662, 1722, 2810 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

MATHEMATICA

Do[ If[ PrimeQ[ 2^n + 19 ], Print[ n ] ], {n, 1, 15000} ]

CROSSREFS

Sequence in context: A192446 A005432 A009422 * A180892 A196497 A127115

Adjacent sequences:  A057218 A057219 A057220 * A057222 A057223 A057224

KEYWORD

nonn

AUTHOR

Robert G. Wilson v (rgwv(AT)rgwv.com), Sep 17 2000

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Last modified February 16 21:51 EST 2012. Contains 205978 sequences.