id:A106558 - OEIS Search Results

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a(n)=1+floor(sqrt(Pi/2)*p(n)#).

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3, 8, 38, 264, 2896, 37638, 639830, 12156759, 279605448, 8108557990, 251365297667, 9300516013674 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`a(n) is an approximation to the number of primes less than p(n+1)#`
	CROSSREFS	`Cf. A000849.` `Sequence in context: A123985 A089066 A099030 this_sequence A065914 A108262 A034892` `Adjacent sequences: A106555 A106556 A106557 this_sequence A106559 A106560 A106561`
	KEYWORD	`nonn`
	AUTHOR	`Pierre CAMI (pierrecami(AT)tele2.fr), May 09 2005`

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.