id:A112893 - OEIS Search Results

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a(n) is the least positive integer in base 10 containing n twos that is divisible by n.

+0
2

2, 22, 222, 22212, 222220, 222222, 21222222, 222222224, 222222222, 22222222220, 222222222222, 2222222222220, 22222122222222, 222122222222222, 2222222222222220, 22222222222222224, 222202222222222222 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`a(n) = n*A112894(n).`
	EXAMPLE	`a(4) = 22212 because 22212 contains 4 twos and is divisible by 4.`
	CROSSREFS	`Cf. A112889-A112898, A112900-A112905, A112907-A112910.` `Sequence in context: A037567 A137109 A002276 this_sequence A086855 A089182 A138140` `Adjacent sequences: A112890 A112891 A112892 this_sequence A112894 A112895 A112896`
	KEYWORD	`base,nonn`
	AUTHOR	`Ray G. Opao (1260(AT)email.com), Oct 05 2005`
	EXTENSIONS	`Extended by Ray Chandler (rayjchandler(AT)sbcglobal.net), Oct 09 2005`

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Last modified July 25 07:41 EDT 2008. Contains 142293 sequences.

AT&T Labs Research