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%I #33 Feb 16 2020 20:17:05
%S 0,1,2,3,30,31,4,32,5,6,34,7,8,9,35,10,11,36,12,14,13,15,16,17,23,18,
%T 19,20,21,37,22,24,25,26,38,27,28,29,40,43,41,42,44,45,46,53,47,48,49,
%U 50,51,52,39,54,55,56,57,58,59,300,60,61,62,64,65,66,301,67,68,69,70,71,72,63,74,75,76,77,78,79,80,81,302,82,84,85,86,87,88,89,73,90,91,92,94,95,96,97,98,99,304,100,101,102,104,105,103,106,107,108
%N Start with a(1)=0; thereafter, between two successive digits "3" there are 0, then 1, then 2, then 3, ... other digits.
%C The sequence starts with a(1) = 0 and is always extended with the smallest integer not yet present that does not lead to a contradiction.
%H Jean-Marc Falcoz, <a href="/A278861/b278861.txt">Table of n, a(n) for n = 1..1055</a>
%e There are 0 digit between "3" and "30"; there is 1 digit between the "3" of "30" and the "3" of "31" (this is the "0" of "30"); there are 2 digits between the "3" of "31" and the "3" of "32" (they are the "1" of "31" and "4" of "4"); there are 3 digits between the "3" of "32" and the "3" of "34" (they are the "2" of "32", the "5" of "5" and the "6" of "6"); etc.
%K nonn,base
%O 1,3
%A _Eric Angelini_ and _Jean-Marc Falcoz_, Nov 29 2016
%E Recalculation of the sequence by _Jean-Marc Falcoz_ following the (sound) remark by _Charles R Greathouse IV_
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