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A084541 Numbers n such that 4^n + 9i is a Gaussian Prime. 0
1, 2, 3, 4, 7, 8, 14, 16, 24, 32, 62, 68, 77, 88, 138, 162, 164, 183, 321, 333, 502, 1613 (list; graph; refs; listen; history; internal format)
OFFSET

1,2

COMMENTS

No more under 2000.

MATHEMATICA

Flatten[Position[Table[PrimeQ[4^n + 9 I], {n, 1, 2000}], True]]

CROSSREFS

Sequence in context: A057887 A202116 A006049 * A113050 A015927 A097110

Adjacent sequences:  A084538 A084539 A084540 * A084542 A084543 A084544

KEYWORD

hard,nonn

AUTHOR

Ed Pegg Jr (ed(AT)mathpuzzle.com), May 29 2003

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Last modified February 17 23:40 EST 2012. Contains 206085 sequences.