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A056800 Numbers n such that 6*9^n +1 is prime. 0
0, 2, 4, 8, 28, 32, 448 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

MATHEMATICA

Do[If[PrimeQ[6*9^n + 1], Print[n]], {n, 0, 1000}]

CROSSREFS

Sequence in context: A112285 A037170 A006399 * A034919 A151340 A134316

Adjacent sequences:  A056797 A056798 A056799 * A056801 A056802 A056803

KEYWORD

nonn

AUTHOR

Robert G. Wilson v (rgwv(AT)rgwv.com), Aug 22 2000

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Last modified February 14 08:58 EST 2012. Contains 205614 sequences.