id:A014120 - OEIS Search Results

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Smallest number of persistence n over product-of-nonzero-digits function.

+0
11

0, 10, 25, 39, 77, 679, 6788, 68889, 2677889, 26888999, 3778888999, 267777777889999, 77777777788888888888899999, 37777777777777777777777777778888889999999999999999999 (list; graph; listen)

	OFFSET	`0,2`
	LINKS	`Ray Chandler, Table of n, a(n) for n=0..14` `N. J. A. Sloane, The persistence of a number, J. Recreational Math., 6 (1973), 97-98.`
	CROSSREFS	`Cf. A003001.` `Sequence in context: A074814 A002600 A087473 this_sequence A003001 A038350 A003344` `Adjacent sequences: A014117 A014118 A014119 this_sequence A014121 A014122 A014123`
	KEYWORD	`nonn,base,nice`
	AUTHOR	`David W. Wilson (davidwwilson(AT)comcast.net)`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

AT&T Labs Research