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%I #36 Mar 02 2018 20:27:57
%S 0,1,2,3,4,5,6,7,8,9,10,22,33,44,11,20,35,46,17,28,30,45,16,27,38,40,
%T 15,26,37,48,19,25,36,47,18,29,50,34,61,72,55,39,14,60,52,73,41,66,58,
%U 23,49,67,51,32,80,64,57,12,83,69,54,21,70,63,59,24,71,68
%N a(n) = smallest integer not yet in the sequence with no digits in common with a(n-1), a(n-2), and a(n-3); a(0)=0, a(1)=1, a(2)=2.
%C The first differences of this sequence are symmetrically distributed around 0, in a distribution that has a larger kurtosis than the Normal distribution.
%Y Cf. A067581, A276633.
%K nonn,base
%O 0,3
%A _Enrique Navarrete_, Feb 28 2018