id:A046144 - OEIS Search Results

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Number of primitive roots of n.

+0
11

1, 1, 1, 1, 2, 1, 2, 0, 2, 2, 4, 0, 4, 2, 0, 0, 8, 2, 6, 0, 0, 4, 10, 0, 8, 4, 6, 0, 12, 0, 8, 0, 0, 8, 0, 0, 12, 6, 0, 0, 16, 0, 12, 0, 0, 10, 22, 0, 12, 8, 0, 0, 24, 6, 0, 0, 0, 12, 28, 0, 16, 8, 0, 0, 0, 0, 20, 0, 0, 0, 24, 0, 24, 12, 0, 0, 0, 0, 24, 0, 18, 16, 40, 0, 0, 12, 0, 0, 40, 0, 0 (list; graph; listen)

	OFFSET	`1,5`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..10000` `Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.` `S. R. Finch, Idempotents and Nilpotents Modulo n (arXiv:math.NT/0605019)`
	FORMULA	`a(n) is equal to A010554 unless n is a member of A033949, in which case a(n)=0.`
	CROSSREFS	`Cf. A001918, A010554, A033949, A046145, A046146.` `Sequence in context: A112329 A117448 A093321 this_sequence A144736 A137423 A127471` `Adjacent sequences: A046141 A046142 A046143 this_sequence A046145 A046146 A046147`
	KEYWORD	`nonn`
	AUTHOR	`Eric Weisstein (eric(AT)weisstein.com)`

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

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