A055730 - OEIS

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A055730

Number of primes < 5^n.

0, 3, 9, 30, 114, 445, 1821, 7671, 33118, 145713, 650133, 2934858, 13375865, 61444585, 284140656, 1321453490, 6175961983, 28988040005, 136575061279, 64562095545 (list; graph; refs; listen; history; internal format)

	OFFSET	`0,2`
	LINKS	`Index entries for sequences related to numbers of primes in various ranges`
	MATHEMATICA	`Table[PrimePi[5^n], {n, 0, 19}]`
	CROSSREFS	`Cf. A006880, A007053 and A040014.` `Sequence in context: A117428 A134168 A124427 * A120018 A091353 A003604` `Adjacent sequences: A055727 A055728 A055729 * A055731 A055732 A055733`
	KEYWORD	`nonn`
	AUTHOR	`Robert G. Wilson v (rgwv(AT)rgwv.com), Jun 09 2000`

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Last modified February 17 21:13 EST 2012. Contains 206085 sequences.