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A117656 Number of solutions to x^(k+2)=x^2 mod n for some k>=1. +0
1
1, 2, 3, 4, 5, 6, 7, 6, 9, 10, 11, 12, 13, 14, 15, 12, 17, 18, 19, 20, 21, 22, 23, 18, 25, 26, 21, 28, 29, 30, 31, 20, 33, 34, 35, 36, 37, 38, 39, 30, 41, 42, 43, 44, 45, 46, 47, 36, 49, 50, 51, 52, 53, 42, 55, 42, 57, 58, 59, 60, 61, 62, 63, 40, 65, 66, 67, 68, 69, 70, 71, 54 (list; graph; listen)
OFFSET

1,2

LINKS

S. R. Finch, Idempotents and Nilpotents Modulo n (arXiv:math.NT/0605019)

CROSSREFS

Sequence in context: A161658 A066853 A141258 this_sequence A101918 A132125 A102672

Adjacent sequences: A117653 A117654 A117655 this_sequence A117657 A117658 A117659

KEYWORD

mult,nonn

AUTHOR

S. R. Finch (Steven.Finch(AT)inria.fr), Apr 11 2006

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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