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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. +0
3
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; listen)
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Last modified December 4 08:07 EST 2009. Contains 170310 sequences.


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