id:A087896 - OEIS Search Results

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Trajectory of prime exponents n where a^n-(a-1)^n is composite, a=2,3,4..

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11, 7, 5, 2, 3, 5, 2, 3, 5, 2, 5, 2, 2, 5, 3, 2, 2, 3, 2, 3, 3, 2, 5, 2, 2, 3, 2, 2, 3, 7, 2, 2, 3, 2, 3, 3, 2, 2, 3, 2, 7, 2, 2, 3, 2, 2, 2, 5, 2, 3, 3, 2, 3, 3, 2, 3, 2, 2, 2, 2, 2, 2, 5, 2, 3, 2, 2, 3, 3, 2, 2, 2, 2, 5, 3, 2, 2, 3, 2, 2, 5, 2, 3, 2, 2, 5, 2, 2, 3, 5, 2, 2, 2, 2, 5, 3, 2, 3, 3 (list; graph; listen)

	OFFSET	`2,1`
	PROGRAM	`(PARI) apmb2(m, n) = { for(a=2, m, forprime(x=2, n, y=a^x-(a-1)^x; if(!ispseudoprime(y), print1(x", "); break ) ) ) }`
	CROSSREFS	`Adjacent sequences: A087893 A087894 A087895 this_sequence A087897 A087898 A087899` `Sequence in context: A109828 A048981 A132361 this_sequence A110093 A060954 A038321`
	KEYWORD	`nonn,uned`
	AUTHOR	`Cino Hilliard (hillcino368(AT)gmail.com), Oct 26 2003`

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Last modified October 15 09:18 EDT 2008. Contains 145015 sequences.

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