id:A037038 - OEIS Search Results

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Number of primes between n and 4n+1.

+0
1

3, 4, 5, 5, 6, 6, 7, 7, 8, 9, 10, 10, 11, 10, 12, 12, 13, 14, 14, 14, 15, 16, 16, 16, 17, 18, 20, 21, 21, 20, 20, 20, 21, 22, 23, 23, 24, 24, 25, 25, 26, 26, 27, 26, 28, 28, 28, 29, 30, 31, 31, 31, 32, 31, 31, 32, 34, 35, 35, 36, 36, 35, 36, 37, 37, 38, 39, 39, 40, 41, 42, 41 (list; graph; listen)

	OFFSET	`1,1`
	EXAMPLE	`a(5)=6 because between 5 and 21 there are 6 primes.`
	CROSSREFS	`Cf. A014085.` `Adjacent sequences: A037035 A037036 A037037 this_sequence A037039 A037040 A037041` `Sequence in context: A130234 A108852 A119476 this_sequence A106501 A065305 A009070`
	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 May 16 23:01 EDT 2008. Contains 139884 sequences.

AT&T Labs Research