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Search: id:A034048
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A034048 Numbers with multiplicative digital root value 0. +0
1
0, 10, 20, 25, 30, 40, 45, 50, 52, 54, 55, 56, 58, 59, 60, 65, 69, 70, 78, 80, 85, 87, 90, 95, 96, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 120, 125, 130, 140, 145, 150, 152, 154, 155, 156, 158, 159, 160, 165, 169, 170, 178, 180, 185, 187, 190, 195 (list; graph; listen)
OFFSET

1,2

COMMENT

Numbers with root value 1 are the 'repunits' -> see A000042.

This sequence has density 1. - Franklin T. Adams-Watters (FrankTAW(AT)netscape.net, Apr 01 2009

LINKS

Franklin T. Adams-Watters, Table of n, a(n) for n=1..10000

Eric Weisstein's World of Mathematics, Multiplicative Digital Root

CROSSREFS

Cf. A031347.

Sequence in context: A098165 A104801 A144140 this_sequence A072592 A101869 A015872

Adjacent sequences: A034045 A034046 A034047 this_sequence A034049 A034050 A034051

KEYWORD

nonn

AUTHOR

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

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Last modified December 16 13:01 EST 2009. Contains 170825 sequences.


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