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A076681 Numbers n such that 5*n! + 1 is a prime. 1
2, 3, 5, 10, 11, 12, 17, 34, 74, 136, 155, 259, 271, 290, 352, 479, 494, 677, 776, 862, 921, 932, 2211, 3927 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..24.

EXAMPLE

n=3 is here because 5*3!+1=31 is a prime.

CROSSREFS

Cf. A051915.

Sequence in context: A175481 A246392 A219860 * A047604 A104427 A259732

Adjacent sequences:  A076678 A076679 A076680 * A076682 A076683 A076684

KEYWORD

nonn

AUTHOR

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

STATUS

approved

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Last modified August 28 18:07 EDT 2015. Contains 261154 sequences.