id:A078331 - OEIS Search Results

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First prime such that p^2==1 (mod n).

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2, 3, 2, 3, 11, 5, 13, 3, 17, 11, 23, 5, 53, 13, 11, 7, 67, 17, 37, 11, 13, 23, 47, 5, 101, 53, 53, 13, 59, 11, 61, 17, 23, 67, 29, 17, 73, 37, 53, 11, 83, 13, 173, 23, 19, 47, 281, 7, 97, 101, 67, 53, 107, 53, 89, 13, 37, 59, 353, 11, 367, 61, 71, 31, 79, 23, 269, 67, 47, 29 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(2)=3 because 3^2=9==1 (mod 2), while 2^2==0 (mod 2).`
	PROGRAM	`(PARI) for (n=1, 100, forprime(p=2, 1000, if ((p^2-1)%n==0, print1(p", "); break)))`
	CROSSREFS	`Sequence in context: A102310 A151546 A117936 this_sequence A093868 A077942 A077989` `Adjacent sequences: A078328 A078329 A078330 this_sequence A078332 A078333 A078334`
	KEYWORD	`nonn`
	AUTHOR	`Jon Perry (perry(AT)globalnet.co.uk), Nov 21 2002`

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

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