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Search: id:A076680
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A076680 Numbers n such that 4*n! + 1 is a prime. +0
3
0, 1, 4, 7, 8, 9, 13, 16, 28, 54, 86, 129, 190, 351, 466, 697, 938, 1510, 3396, 4057, 4384 (list; graph; listen)
OFFSET

1,3

EXAMPLE

n=7 is here because 4*7!+1=20161 is a prime.

CROSSREFS

Cf. A051915.

Sequence in context: A020670 A047538 A074231 this_sequence A001074 A026316 A091158

Adjacent sequences: A076677 A076678 A076679 this_sequence A076681 A076682 A076683

KEYWORD

nonn

AUTHOR

Phillip L. Poplin (plpoplin(AT)bellsouth.net), Oct 25 2002

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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