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A098779 Smallest number not occurring earlier having in its decimal representation no digit in common with n. 1
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 20, 30, 22, 23, 24, 25, 26, 27, 28, 11, 33, 10, 14, 13, 16, 15, 18, 17, 31, 12, 29, 19, 21, 50, 40, 41, 42, 44, 45, 32, 35, 36, 51, 37, 38, 39, 52, 53, 55, 34, 43, 46, 47, 60, 48, 49, 61, 62, 63, 54, 57, 58, 59, 70, 71, 72, 80, 73, 74, 56, 64, 65, 66 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

As Luc Kumps pointed out in the < rec.puzzles > forum (30/09/2004): This is *very* similar to A096779 (only difference being that you start at "0" - A096779 starts at "1").

This sequence stops with a(123456788). Could someone compute this last term?

LINKS

Robert Israel, Table of n, a(n) for n = 1..10000

MAPLE

A[1]:= 0: Used[0]:= true:

for n from 2 to 100 do

  S:= convert(convert(n, base, 10), set);

  k:= 1:

  do

    while Used[k] = true do k:= k+1 od:

    L:= convert(k, base, 10);

    v:= select(t -> member(L[t], S), [$1..nops(L)]);

    if v = [] then A[n]:= k; Used[k]:= true; break fi;

    k:= k + 10^(v[-1]-1) - (k mod 10^(v[-1]-1));

  od;

od:

seq(A[n], n=1..100); # Robert Israel, Nov 28 2016

CROSSREFS

Sequence in context: A217489 A217491 A122619 * A276822 A326106 A180412

Adjacent sequences:  A098776 A098777 A098778 * A098780 A098781 A098782

KEYWORD

easy,nonn,base,fini,look

AUTHOR

Eric Angelini, Oct 04 2004

EXTENSIONS

Keyword fini added and offset corrected by Rick L. Shepherd, Nov 28 2016

STATUS

approved

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Last modified April 18 21:58 EDT 2021. Contains 343089 sequences. (Running on oeis4.)