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A213217 Earliest string in {1,2,...9}* that is order-isomorphic to string formed by digits of n. 0
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 21, 11, 12, 12, 12, 12, 12, 12, 12, 12, 21, 21, 11, 12, 12, 12, 12, 12, 12, 12, 21, 21, 21, 11, 12, 12, 12, 12, 12, 12, 21, 21, 21, 21, 11, 12, 12, 12, 12, 12, 21, 21, 21, 21, 21, 11, 12, 12, 12, 12, 21, 21, 21, 21, 21, 21, 11, 12, 12, 12, 21, 21, 21, 21, 21, 21, 21, 11, 12, 12, 21, 21, 21, 21, 21, 21, 21, 21, 11, 12, 21, 21, 21, 21, 21, 21, 21, 21, 21, 11, 211, 212, 213, 213, 213, 213, 213, 213, 213, 213, 221, 111, 112, 112, 112, 112, 112, 112, 112, 112 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,11

COMMENTS

Well-defined for n < 1023456789 (i.e. until all ten digits appear in n).

a(n) = n iff n = (10^k-1)/9 for some k<10.

LINKS

Table of n, a(n) for n=0..119.

EXAMPLE

73307 is order-isomorphic to 32213, so a(73307) = 32213.

a(n) = 1 for n <= 9; a(10)=21, a(11)=11, a(12)=...=a(19)=12, a(20)=21, ...

CROSSREFS

Sequence in context: A318648 A033341 A252629 * A300505 A086981 A114011

Adjacent sequences:  A213214 A213215 A213216 * A213218 A213219 A213220

KEYWORD

nonn,base

AUTHOR

N. J. A. Sloane, Mar 02 2013

STATUS

approved

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Last modified June 17 04:45 EDT 2021. Contains 345080 sequences. (Running on oeis4.)