A037630 - OEIS

%I #14 Jul 23 2021 02:44:50

%S 2,21,189,1703,15330,137970,1241732,11175591,100580319,905222873,

%T 8147005860,73323052740,659907474662,5939167271961,53452505447649,

%U 481072549028843,4329652941259590

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

%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+3*x) / ( (x-1)*(9*x-1)*(1+x+x^2) ). - _R. J. Mathar_, Nov 21 2011

%K nonn,base

%O 1,1

%A _Clark Kimberling_