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A070438 n^2 mod 15. +0
9
0, 1, 4, 9, 1, 10, 6, 4, 4, 6, 10, 1, 9, 4, 1, 0, 1, 4, 9, 1, 10, 6, 4, 4, 6, 10, 1, 9, 4, 1, 0, 1, 4, 9, 1, 10, 6, 4, 4, 6, 10, 1, 9, 4, 1, 0, 1, 4, 9, 1, 10, 6, 4, 4, 6, 10, 1, 9, 4, 1, 0, 1, 4, 9, 1, 10, 6, 4, 4, 6, 10, 1, 9, 4, 1, 0, 1, 4, 9, 1, 10, 6, 4, 4, 6, 10, 1, 9, 4, 1, 0, 1, 4, 9, 1, 10, 6 (list; graph; listen)
OFFSET

0,3

COMMENT

a(m*n)=a(m)*a(n) mod 15; a(15*n+7+k)=a(15*n+8-k) for k<=15*n+7; a(15*n+k)=a(15*n-k) for k<=15*n; a(n+15)=a(n). [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Apr 24 2009]

CROSSREFS

A010378, A070431, A008959, A070435, A070442, A070452, A159852, A000290. [From Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Apr 24 2009]

Sequence in context: A001191 A120865 A133868 this_sequence A070638 A152205 A129861

Adjacent sequences: A070435 A070436 A070437 this_sequence A070439 A070440 A070441

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), May 12 2002

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.


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