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A035239 Smallest number that contains the numbers from 1 to n as substrings. 5
1, 12, 123, 1234, 12345, 123456, 1234567, 12345678, 123456789, 1023456789, 11023456789, 101123456789, 1011213456789, 10112131456789, 101121314156789, 1011213141516789, 10112131415161789, 101121314151617189 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..18.

D. Rusin, Solution for n=1000 [Broken link]

D. Rusin, Solution for n=1000 [Cached copy]

CROSSREFS

Cf. A054260, A054261.

Sequence in context: A113572 A037701 A037610 * A057137 A252043 A014824

Adjacent sequences:  A035236 A035237 A035238 * A035240 A035241 A035242

KEYWORD

easy,nonn,base

AUTHOR

Erich Friedman

EXTENSIONS

Keyword base added by Reinhard Zumkeller, May 16 2010

STATUS

approved

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Last modified August 22 11:15 EDT 2017. Contains 290946 sequences.