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Base 9 digits are, in order, the first n terms of the periodic sequence with initial period 2,0,1,3.
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%I #8 Jan 29 2023 17:01:45

%S 2,18,163,1470,13232,119088,1071793,9646140,86815262,781337358,

%T 7032036223,63288326010,569594934092,5126354406828,46137189661453,

%U 415234706953080,3737112362577722

%N Base 9 digits are, in order, the first n terms of the periodic sequence with initial period 2,0,1,3.

%H <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (10,-10,10,-9).

%F G.f.: ( x*(2-2*x+3*x^2) ) / ( (x-1)*(9*x-1)*(x^2+1) ). - _R. J. Mathar_, Oct 14 2015

%t Table[FromDigits[PadRight[{},n,{2,0,1,3}],9],{n,20}] (* _Harvey P. Dale_, Jan 29 2023 *)

%K nonn,base

%O 1,1

%A _Clark Kimberling_