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Search: id:A087521
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A087521 Smallest prime p such that the prime signature of p+1 has not occurred earlier. +0
2
2, 3, 5, 7, 11, 23, 29, 31, 47, 59, 71, 127, 167, 179, 191, 223, 239, 359, 383, 389, 419, 431, 479, 719, 839, 863, 971, 1151, 1259, 1279, 1439, 1511, 2111, 2309, 2591, 2687, 2699, 2879, 3023, 3119, 3359, 3583, 3779, 5039, 5119, 5399, 6047, 6143, 6299, 6719 (list; graph; listen)
OFFSET

0,1

CROSSREFS

Cf. A087520.

Sequence in context: A046689 A048278 A068863 this_sequence A078403 A129945 A046704

Adjacent sequences: A087518 A087519 A087520 this_sequence A087522 A087523 A087524

KEYWORD

nonn

AUTHOR

Amarnath Murthy (amarnath_murthy(AT)yahoo.com), Sep 11 2003

EXTENSIONS

Edited by Ray Chandler (rayjchandler(AT)sbcglobal.net), Sep 14 2003

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Last modified November 24 19:42 EST 2009. Contains 167435 sequences.


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