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A014120 Smallest number of persistence n over product-of-nonzero-digits function. 11
0, 10, 25, 39, 77, 679, 6788, 68889, 2677889, 26888999, 3778888999, 267777777889999, 77777777788888888888899999, 37777777777777777777777777778888889999999999999999999 (list; graph; refs; listen; history; text; internal format)
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 * A003001 A198377 A038350

Adjacent sequences:  A014117 A014118 A014119 * A014121 A014122 A014123

KEYWORD

nonn,base,nice

AUTHOR

David W. Wilson

STATUS

approved

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Last modified October 19 00:36 EDT 2018. Contains 316327 sequences. (Running on oeis4.)