A046094 - OEIS

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A046094

Agoh's congruence; a(n) is conjectured to be 1 iff n is prime.

0, 1, 1, 0, 1, 0, 1, 0, 3, 0, 1, 0, 1, 0, 5, 0, 1, 0, 1, 0, 0, 0, 1, 0, 5, 0, 9, 0, 1, 0, 1, 0, 11, 0, 0, 0, 1, 0, 13, 0, 1, 0, 1, 0, 24, 0, 1, 0, 7, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 21, 0, 0, 0, 1, 0, 23, 0, 1, 0, 1, 0, 25, 0, 0, 0, 1, 0, 0, 0, 1, 0, 17, 0, 29, 0, 1, 0, 13, 0, 31, 0, 0, 0, 1, 0 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,9`
	REFERENCES	Borwein, D.; Borwein, J.M.; Borwein, P.B.; and Girgensohn, R. ``Giuga's Conjecture on Primality.'' Amer. Math. Monthly, 103, 40-50, 1996.
	LINKS	`Index entries for sequences related to Bernoulli numbers.` `Eric Weisstein's World of Mathematics, Agoh's Conjecture`
	MATHEMATICA	`a[ n_ ] := -Mod[ n Bernoulli[ n-1 ], n ]`
	CROSSREFS	`Sequence in context: A129685 A140807 A091959 * A055976 A183700 A093684` `Adjacent sequences: A046091 A046092 A046093 * A046095 A046096 A046097`
	KEYWORD	`nonn`
	AUTHOR	`Eric Weisstein (eric(AT)weisstein.com)`

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Last modified February 14 15:24 EST 2012. Contains 205626 sequences.