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Search: id:A105893
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A105893 Primes for which -21 is a primitive root. +0
1
2, 29, 47, 53, 59, 67, 83, 97, 113, 127, 131, 137, 149, 151, 157, 167, 181, 197, 227, 233, 251, 281, 311, 313, 317, 331, 379, 383, 389, 397, 401, 409, 419, 449, 467, 479, 487, 499, 503, 557, 563, 569, 571, 577, 587, 647, 653, 701, 719, 733, 739, 751, 769, 809, 821, 823 (list; graph; listen)
OFFSET

1,1

CROSSREFS

Adjacent sequences: A105890 A105891 A105892 this_sequence A105894 A105895 A105896

Sequence in context: A139833 A059700 A078329 this_sequence A090389 A059799 A115448

KEYWORD

nonn

AUTHOR

njas, Apr 24 2005

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Last modified October 6 16:13 EDT 2008. Contains 144667 sequences.


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