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A083520 Primes p such that p-1 is a product of two or more consecutive integers. Or (p-1) is a permutation of m items chosen from n, for some m and n. p-1 = k*(k+1)(k+2)...(k+r) for some k and r, r>0. 2
3, 7, 13, 31, 43, 61, 73, 157, 211, 241, 307, 337, 421, 463, 601, 757, 991, 1123, 1321, 1483, 1723, 2521, 2551, 2731, 2971, 3307, 3361, 3541, 3907, 4423, 4831, 5113, 5701, 6007, 6163, 6481, 6841, 8011, 8191, 9241, 9901, 10303, 10627, 11131, 12211, 12433 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

EXAMPLE

61 belongs to this sequence as 60 = 3*4*5, 73 belongs to this sequence as 72 = 8*9.

CROSSREFS

Cf. A083521.

Cf. A002383.

Sequence in context: A105435 A117708 A093431 * A162869 A079018 A002383

Adjacent sequences:  A083517 A083518 A083519 * A083521 A083522 A083523

KEYWORD

nonn

AUTHOR

Amarnath Murthy and Meenakshi Srikanth (amarnath_murthy(AT)yahoo.com), May 05 2003

EXTENSIONS

More terms from David Wasserman, Nov 19 2004

STATUS

approved

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Last modified May 23 23:31 EDT 2013. Contains 225613 sequences.