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A039932 Smallest number k for which k, 2k, ... nk all contain the digit 1. 11
1, 51, 51, 531, 2571, 2571, 2571, 15703, 15703, 15703, 15703, 15703, 15703, 15703, 90271, 90271, 90271, 90271, 90271, 90271, 90271, 90271, 102053, 530102, 530102, 530102, 530102, 530102, 530102, 530102, 530102, 530102, 530102, 530102, 530102 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Giovanni Resta, Table of n, a(n) for n = 1..2443

EXAMPLE

a(3)=51 since 51, 102, and 153 all contain a 1.

CROSSREFS

Cf. A039933, A039934, A039935, A039936, A039937, A039938, A039939, A039940.

Sequence in context: A131536 A204375 A003912 * A210183 A210086 A031959

Adjacent sequences:  A039929 A039930 A039931 * A039933 A039934 A039935

KEYWORD

nonn,base

AUTHOR

Erich Friedman

EXTENSIONS

More terms from Patrick De Geest, Oct 15 1999

STATUS

approved

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Last modified May 28 17:37 EDT 2020. Contains 334684 sequences. (Running on oeis4.)