id:A164831 - OEIS Search Results

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a(n) = number of values taken by cos(2*pi/k) mod n for all k = 1:n-1.

+0
5

0, 1, 3, 4, 7, 12, 12, 19, 22, 29, 25, 40, 29, 48, 59, 85, 42, 83, 53, 93, 99, 96, 64, 175, 144, 113, 159, 161, 97, 235, 100, 297, 187, 165, 231, 274, 111, 200, 224, 386, 156, 398, 149, 303, 425, 248, 152, 733, 450, 513, 332, 359, 181, 572, 448, 648, 384, 361, 221, 786 (list; graph; listen)

	OFFSET	`1,3`
	LINKS	`C. H. Gribble, Table of n, a(n) for n = 1:1000.`
	CROSSREFS	`Cf. A164822, A164823, A164846, A165252.` `Sequence in context: A041781 A042893 A132111 this_sequence A085188 A083561 A018195` `Adjacent sequences: A164828 A164829 A164830 this_sequence A164832 A164833 A164834`
	KEYWORD	`nonn`
	AUTHOR	`Christopher Hunt Gribble (chris.eveswell(AT)virgin.net), Aug 27 2009`
	EXTENSIONS	`Edited by N. J. A. Sloane, Sep 01 2009` `Sequence corrected by Christopher Hunt Gribble (chris.eveswell(AT)virgin.net), Sep 10 2009`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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