id:A037037 - OEIS Search Results

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Number of primes between n and 3n.

+0
1

2, 3, 3, 3, 4, 4, 5, 5, 5, 6, 7, 6, 7, 7, 8, 9, 9, 9, 9, 9, 10, 10, 11, 11, 12, 12, 13, 14, 14, 14, 14, 13, 14, 15, 16, 17, 18, 18, 18, 18, 18, 17, 18, 18, 18, 19, 20, 19, 19, 20, 21, 21, 22, 21, 22, 23, 23, 24, 24, 24, 25, 24, 24, 25, 26, 27, 28, 27, 27, 27, 28, 27, 27, 26, 27, 28 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`For example a(5)=4 because between 5 and 15 there are 4 primes.`
	CROSSREFS	`Cf. A014085.` `Sequence in context: A039728 A029119 A087823 this_sequence A156262 A120565 A156250` `Adjacent sequences: A037034 A037035 A037036 this_sequence A037038 A037039 A037040`
	KEYWORD	`nonn`
	AUTHOR	`Felice Russo (felice.russo(AT)katamail.com)`
	EXTENSIONS	`More terms from Erich Friedman (erich.friedman(AT)stetson.edu)`

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

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