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A046510 Numbers with multiplicative persistence value 1. 5
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 30, 31, 32, 33, 40, 41, 42, 50, 51, 60, 61, 70, 71, 80, 81, 90, 91, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121 (list; graph; refs; listen; history; internal format)
OFFSET

1,3

LINKS

N. J. A. Sloane, The persistence of a number, J. Recreational Math., 6 (1973), 97-98.

Eric Weisstein's World of Mathematics, Multiplicative Persistence

EXAMPLE

24 -> 2 * 4 = [ 8 ] -> one digit in one step.

CROSSREFS

Cf. A003001, A014120, A046501.

Sequence in context: A193989 A175427 A050608 * A090273 A135381 A135382

Adjacent sequences:  A046507 A046508 A046509 * A046511 A046512 A046513

KEYWORD

nonn,base

AUTHOR

Patrick De Geest (pdg(AT)worldofnumbers.com), Sep 15 1998.

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Last modified February 17 03:30 EST 2012. Contains 205978 sequences.