A085460 Primes p such that there is at least one k dividing (p-1)!-1 (p<=k<=2p).

2, 43, 47, 53, 97, 367, 499, 617, 653, 661, 719, 757, 787, 971, 1093, 1109, 1163, 1249, 1283, 1447, 1579, 1657, 1663, 1733, 1993, 2099, 2141, 2251, 2287, 2311, 2333, 2557, 2591, 2593, 2621, 2879, 2917, 2957, 2963, 2971, 3253, 3301, 3499, 3719, 3733, 3767

Offset

1,1

Links

Table of n, a(n) for n=1..46.

Prog

(PARI) forprime(n=1, 1000, if(sum(k=n, 2*n, if(((n-1)!-1)%k, 0, 1))>0, print1(n, ", ")))

Crossrefs

Sequence in context: A360549 A268467 A236695 * A139835 A354726 A235473

Adjacent sequences: A085457 A085458 A085459 * A085461 A085462 A085463

Keyword

nonn

Author

Benoit Cloitre, Aug 14 2003

Extensions

More terms from Ray Chandler, Aug 16 2003

Status

approved