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%I #15 Jun 30 2022 11:55:37
%S 2,6,19,59,177,532,1598,4794,14383,43151,129453,388360,1165082,
%T 3495246,10485739,31457219,94371657,283114972,849344918,2548034754,
%U 7644104263,22932312791,68796938373,206390815120,619172445362
%N Base 3 digits are, in order, the first n terms of the periodic sequence with initial period 2,0,1.
%H <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (3,0,1,-3).
%F G.f.: x*(2+x^2) / ( (x-1)*(3*x-1)*(1+x+x^2) ). - _R. J. Mathar_, Nov 21 2011
%t Table[FromDigits[PadRight[{},n,{2,0,1}],3],{n,30}] (* or *) LinearRecurrence[{3,0,1,-3},{2,6,19,59},30] (* _Harvey P. Dale_, Jun 30 2022 *)
%K nonn,base
%O 1,1
%A _Clark Kimberling_