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%I
%S 1,2,12,12,10,12,21,112,12222,10,11,12,221,112,120,112,102,12222,1102,
%T 20,21,22,1012,120,100,1222,21222,112,1102,120,2201,1120,1122,102,210,
%U 22212,111,1102,10101,120,11111,210,2021,220,122220,1012,1222,1200
%N a(n) is the smallest positive multiple of n whose decimal digits are all 0, 1 or 2.
%H Inspired by Project Euler, Problem 303: <a href="http://projecteuler.net/index.php?section=problems&id=303">Multiples with small digits</a>.
%e a(9)=12222 because 12222 is the smallest multiple of 9 whose decimal digits are all 0, 1 or 2.
%Y a(n)/n yields sequence A181061.
%K base,easy,nonn
%O 1,2
%A Herman Beeksma (herman.beeksma(AT)gmail.com), Oct 01 2010
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