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A096688 Least k such that decimal representation of k*n contains only digits 0 and 9. 19
9, 45, 3, 225, 18, 15, 1287, 1125, 1, 9, 9, 75, 693, 6435, 6, 5625, 5877, 5, 5211, 45, 429, 45, 43083, 375, 36, 3465, 37, 32175, 341721, 3, 32229, 28125, 3, 29385, 2574, 25, 27, 26055, 231, 225, 2439, 2145, 230463, 225, 2, 215415, 1917, 1875, 202041, 18, 1959 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..51.

FORMULA

a(n) = A078248(n)/n.

CROSSREFS

Cf. A004290, A078241-A078248, A079339, A096681-A096688.

Sequence in context: A125679 A037207 A225488 * A181431 A249067 A124983

Adjacent sequences:  A096685 A096686 A096687 * A096689 A096690 A096691

KEYWORD

base,nonn

AUTHOR

Ray Chandler, Jul 12 2004

STATUS

approved

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Last modified April 29 11:38 EDT 2017. Contains 285604 sequences.