id:A051628 - OEIS Search Results

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Number of digits in decimal expansion of 1/n before the periodic part begins.

+0
2

0, 1, 0, 2, 1, 1, 0, 3, 0, 1, 0, 2, 0, 1, 1, 4, 0, 1, 0, 2, 0, 1, 0, 3, 2, 1, 0, 2, 0, 1, 0, 5, 0, 1, 1, 2, 0, 1, 0, 3, 0, 1, 0, 2, 1, 1, 0, 4, 0, 2, 0, 2, 0, 1, 1, 3, 0, 1, 0, 2, 0, 1, 0, 6, 1, 1, 0, 2, 0, 1, 0, 3, 0, 1, 2, 2, 0, 1, 0, 4, 0, 1, 0, 2, 1, 1, 0, 3, 0, 1, 0, 2, 0, 1, 1, 5, 0, 1, 0, 2, 0, 1, 0, 3, 1 (list; graph; listen)

	OFFSET	`1,4`
	LINKS	`T. D. Noe, Table of n, a(n) for n=1..1000` `L. Lopes, POLYA problem` `Index entries for sequences related to decimal expansion of 1/n`
	FORMULA	`for n>1, a(n)=max(i, j) where n=2^i3^x5^j*... is the prime decomposition of n.`
	EXAMPLE	`1/8 = .1250000... so a(8)=3, 1/15 = .0666666..., so a(15)=1.`
	CROSSREFS	`Sequence in context: A123340 A110962 A065715 this_sequence A163540 A127967 A147602` `Adjacent sequences: A051625 A051626 A051627 this_sequence A051629 A051630 A051631`
	KEYWORD	`nonn,nice,easy,base`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`
	EXTENSIONS	`More terms from Michael Lugo (mlugo(AT)thelabelguy.com), Dec 22 1999` `More terms from Frank Adams-Watters (FrankTAW(AT)Netscape.net), May 05 2006`

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Last modified November 27 14:50 EST 2009. Contains 167570 sequences.

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