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%I #11 Jul 22 2021 16:54:43
%S 2,19,174,1568,14113,127020,1143182,10288639,92597754,833379788,
%T 7500418093,67503762840,607533865562,5467804790059,49210243110534,
%U 442892187994808,3986029691953273
%N Base 9 digits are, in order, the first n terms of the periodic sequence with initial period 2,1,3.
%H <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (9,0,1,-9).
%F G.f.: x*(2+x+3*x^2) / ( (x-1)*(9*x-1)*(1+x+x^2) ). - _R. J. Mathar_, Nov 21 2011
%K nonn,base
%O 1,1
%A _Clark Kimberling_