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%I #18 Mar 16 2023 07:16:38
%S 1,10,81,650,5201,41610,332881,2663050,21304401,170435210,1363481681,
%T 10907853450,87262827601,698102620810,5584820966481,44678567731850,
%U 357428541854801,2859428334838410
%N Base 8 digits are, in order, the first n terms of the periodic sequence with initial period 1,2.
%H <a href="/index/Rec#order_03">Index entries for linear recurrences with constant coefficients</a>, signature (8,1,-8).
%F a(n) = 8*a(n-1) + a(n-2) - 8*a(n-3).
%F G.f.: x*(1+2*x)/((1-8*x)*(1-x^2)). a(n) = (20*8^n+7*(-1)^n-27)/126. - _Bruno Berselli_, Jan 20 2011
%K nonn,base,easy
%O 1,2
%A _Clark Kimberling_