id:A145907 - OEIS Search Results

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Primes p such that p + ceiling(sqrt(p)) is also prime.

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3, 13, 31, 53, 59, 97, 127, 137, 139, 179, 241, 293, 313, 389, 457, 547, 563, 569, 647, 733, 769, 853, 857, 877, 881, 977, 1019, 1117, 1129, 1153, 1283, 1291, 1409, 1433, 1531, 1543, 1567, 1579, 1597, 1699, 1741, 1747, 1759, 1889, 1907, 2053, 2083, 2221 (list; graph; listen)

	OFFSET	`1,1`
	LINKS	`Charles R Greathouse IV, Table of n, a(n) for n = 1..10000` `K. D. Balliet List of p,p + ceiling(sqrt(p)) up to p = 299951`
	EXAMPLE	`For p = 13; 13 + ceiling(sqrt(13)) = 17, which is prime.`
	CROSSREFS	`Cf. A086085, A145908.` `Sequence in context: A022264 A097955 A077717 this_sequence A054554 A051939 A146728` `Adjacent sequences: A145904 A145905 A145906 this_sequence A145908 A145909 A145910`
	KEYWORD	`nonn`
	AUTHOR	`Kyle Balliet (kdballie(AT)bloomu.edu), Oct 24 2008, Nov 06 2008`
	EXTENSIONS	`More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Oct 31 2008`

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Last modified November 24 19:42 EST 2009. Contains 167435 sequences.

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