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A039937
Smallest k for which k, 2k, ... nk all contain the digit 6.
9
6, 63, 563, 1563, 1632, 3216, 12316, 23266, 66321, 66321, 76923, 76923, 156328, 280692, 566331, 566331, 566331, 2307692, 2307692, 2307692, 2307692, 2307692, 2307692, 2307692, 2307692, 11533664, 23306676, 23306676, 23306676, 23306676
OFFSET
1,1
COMMENTS
a(197) > 10^12. - Giovanni Resta, Apr 27 2017
LINKS
EXAMPLE
a(2)=63 since 63 and 126 contain a 6.
KEYWORD
base,nonn
EXTENSIONS
More terms from Patrick De Geest, Oct 15 1999
STATUS
approved