id:A062234 - OEIS Search Results

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a(n) =2*prime(n) - prime(n+1).

+0
2

1, 1, 3, 3, 9, 9, 15, 15, 17, 27, 25, 33, 39, 39, 41, 47, 57, 55, 63, 69, 67, 75, 77, 81, 93, 99, 99, 105, 105, 99, 123, 125, 135, 129, 147, 145, 151, 159, 161, 167, 177, 171, 189, 189, 195, 187, 199, 219, 225, 225, 227, 237, 231, 245, 251, 257, 267, 265, 273, 279 (list; graph; listen)

	OFFSET	`1,3`
	COMMENT	`It is known that a(n) > 0 for all n (Tchebycheff, 1850).`
	REFERENCES	`J. V. Uspensky and M. A. Heaslet, Elementary Number Theory, McGraw-Hill, NY, 1939.`
	CROSSREFS	`Cf. A000040.` `Sequence in context: A064235 A098355 A107443 this_sequence A086739 A056449 A128019` `Adjacent sequences: A062231 A062232 A062233 this_sequence A062235 A062236 A062237`
	KEYWORD	`easy,nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Jun 29 2001`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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