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A068653 Composite number whose every cyclic permutation other than the number itself is a prime. +0
2
14, 16, 20, 30, 32, 34, 35, 38, 50, 70, 74, 76, 91, 92, 95, 98, 110, 118, 119, 133, 170, 176, 194, 310, 316, 398, 710, 712, 715, 730, 731, 736, 772, 775, 778, 779, 790, 793, 794, 914, 935, 970, 973, 1118, 1130, 1195, 1312, 1336, 1370, 1774, 1937, 3110, 3112 (list; graph; listen)
OFFSET

0,1

EXAMPLE

176 is a member as the two cyclic permutations other than the number itself 761 and 617 are primes.

CROSSREFS

Cf. A003459, A068652.

Sequence in context: A102107 A007935 A076055 this_sequence A102616 A076023 A067844

Adjacent sequences: A068650 A068651 A068652 this_sequence A068654 A068655 A068656

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Feb 28 2002

EXTENSIONS

Corrected and extended by Larry Reeves (larryr(AT)acm.org), Jun 21 2002

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.


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