id:A086086 - OEIS Search Results

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Primes p such that p-floor(Sqrt(p)) is prime.

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3, 5, 7, 17, 23, 37, 43, 47, 67, 79, 107, 113, 149, 151, 163, 211, 257, 331, 349, 409, 421, 439, 509, 521, 587, 593, 601, 617, 709, 727, 797, 839, 907, 911, 937, 941 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(5)=23 because 19 is prime and 23 - (floor(Sqrt(23)) = 23 - (floor(4.795831523)) = 23 - 4 = 19 which is prime.`
	CROSSREFS	`Sequence in context: A122853 A137258 A053341 this_sequence A141772 A032496 A002092` `Adjacent sequences: A086083 A086084 A086085 this_sequence A086087 A086088 A086089`
	KEYWORD	`nonn`
	AUTHOR	`Chuck Seggelin (barkeep(AT)plastereddragon.com), Jul 08 2003`

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.

AT&T Labs Research