id:A071560 - OEIS Search Results

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Smallest k such that n^4+k^4, n^2+k^2, n+k are simultaneously primes.

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1, 1, 2, 1, 2, 1, 10, 3, 10, 7, 6, 25, 10, 15, 14, 1, 2, 5, 10, 3, 10, 15, 8, 19, 6, 11, 2, 13, 120, 11, 76, 5, 20, 9, 68, 65, 30, 3, 34, 43, 66, 5, 10, 149, 2, 21, 20, 893, 34, 17, 20, 27, 20, 85, 58, 141, 2, 55, 20, 37, 10, 47, 110, 85, 18, 41, 40, 35, 10, 223, 26, 7, 240, 9, 8 (list; graph; listen)

	OFFSET	`1,3`
	PROGRAM	`(PARI) for(n=1, 100, s=1; while(isprime(s^2+n^2)isprime(s+n)isprime(s^4+n^4)==0, s++); print1(s, ", "))`
	CROSSREFS	`Adjacent sequences: A071557 A071558 A071559 this_sequence A071561 A071562 A071563` `Sequence in context: A124151 A110179 A071559 this_sequence A097749 A126906 A134304`
	KEYWORD	`easy,nonn`
	AUTHOR	`Benoit Cloitre (benoit7848c(AT)orange.fr), May 30 2002`

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

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