id:A089282 - OEIS Search Results

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Number of distinct prime factors of floor(pi*10^n), pi=3.14...

+0
5

1, 1, 2, 2, 3, 1, 2, 3, 5, 3, 4, 2, 3, 3, 3, 3, 5, 2, 6, 5, 4, 6, 7, 6, 3, 4, 8, 3, 4, 6, 4, 6, 7, 2, 4, 4, 6, 1, 5, 2, 4, 5, 3, 5, 4, 6, 5, 3, 7, 3, 5, 5, 3, 6, 7, 5, 4, 5, 4, 6, 5, 7, 3, 5, 4, 6, 5, 5, 3, 4, 7, 8, 6, 6, 6, 5, 5, 6, 8, 5, 5 (list; graph; listen)

	OFFSET	`0,3`
	COMMENT	`a(n)=A001221(A011545(n)).`
	EXAMPLE	`n=6: floor(pi10^6)=3141592=222392699: a(6)=2.`
	CROSSREFS	`Cf. A089283, A000796.` `Sequence in context: A055460 A067514 A115323 this_sequence A079688 A088598 A077083` `Adjacent sequences: A089279 A089280 A089281 this_sequence A089283 A089284 A089285`
	KEYWORD	`nonn`
	AUTHOR	`Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Oct 30 2003`
	EXTENSIONS	`More terms from Ray Chandler (rayjchandler(AT)sbcglobal.net), Oct 31 2003`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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