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A062587 Numbers n such that k^n - (k-1)^n is prime, where k is 21. +0
1
2, 19, 41, 43, 337, 479, 9127 (list; graph; listen)
OFFSET

1,1

COMMENT

Terms > 1000 are often only strong pseudo-primes.

CROSSREFS

Cf. A000043, A057468, A059801, A059802, A062572-A062666.

Adjacent sequences: A062584 A062585 A062586 this_sequence A062588 A062589 A062590

Sequence in context: A107143 A018610 A075682 this_sequence A109946 A031911 A136685

KEYWORD

nonn,hard

AUTHOR

Mike Oakes (Mikeoakes2(AT)aol.com), May 18 2001, May 19 2001

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Last modified May 16 01:24 EDT 2008. Contains 139630 sequences.


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