id:A112897 - OEIS Search Results

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

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4, 44, 444, 4444, 444440, 444444, 14444444, 444444144, 444444444, 44444444440, 444444444444, 444444444444, 44444244444444, 434444444444444, 4444444444444440, 44444444444444144, 344444444444444444 (list; graph; listen)

	OFFSET	`1,1`
	FORMULA	`a(n) = n*A112898(n).`
	EXAMPLE	`a(7) = 14444444 because 14444444 contains 7 fours and is divisible by 7.`
	CROSSREFS	`Cf. A112889-A112898, A112900-A112905, A112907-A112910.` `Sequence in context: A002754 A105038 A002278 this_sequence A087813 A082779 A053315` `Adjacent sequences: A112894 A112895 A112896 this_sequence A112898 A112899 A112900`
	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 August 8 13:43 EDT 2008. Contains 142651 sequences.

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