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A112660 a(n) = (p-1)! mod p^2 where p = n-th prime. 0
1, 2, 24, 34, 10, 168, 84, 37, 183, 521, 588, 258, 655, 558, 281, 1801, 1592, 3415, 803, 4898, 802, 5766, 1659, 6229, 6789, 7271, 5870, 106, 3269, 10734, 9016, 15588, 7671, 9312, 14005 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

Related to the Wilson primes A007540, which are primes p such that (p-1)! = -1 mod p^2.

LINKS

Table of n, a(n) for n=0..34.

CROSSREFS

Cf. A007540.

Sequence in context: A022374 A139334 A212759 * A280648 A119066 A019996

Adjacent sequences:  A112657 A112658 A112659 * A112661 A112662 A112663

KEYWORD

nonn

AUTHOR

Roger Hui, Dec 28 2005

STATUS

approved

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Last modified June 17 05:19 EDT 2019. Contains 324183 sequences. (Running on oeis4.)