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A076683 Numbers n such that 7*n! + 1 is a prime. 2
3, 7, 8, 15, 19, 29, 36, 43, 51, 158, 160, 203, 432, 909, 1235, 3209 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..16.

EXAMPLE

n=3 is here because 7*3!+1=43 is a prime.

CROSSREFS

Cf. A051915.

Sequence in context: A051211 A105173 A309197 * A045542 A249435 A192120

Adjacent sequences:  A076680 A076681 A076682 * A076684 A076685 A076686

KEYWORD

nonn

AUTHOR

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

STATUS

approved

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Last modified January 24 07:18 EST 2020. Contains 331189 sequences. (Running on oeis4.)