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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
FORMULA
a(n) = A078248(n)/n.
CROSSREFS
Sequence in context: A125679 A037207 A225488 * A181431 A249067 A366420
KEYWORD
base,nonn
AUTHOR
Ray Chandler, Jul 12 2004
STATUS
approved

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Last modified August 21 21:14 EDT 2024. Contains 375353 sequences. (Running on oeis4.)