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%I #19 Dec 14 2023 05:31:29
%S 3,30,302,3023,30230,302302,3023023,30230230,302302302,3023023023,
%T 30230230230,302302302302,3023023023023,30230230230230,
%U 302302302302302,3023023023023023
%N Decimal expansion of a(n) is given by the first n terms of the periodic sequence with initial period 3,0,2.
%H <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (10,0,1,-10).
%F G.f.: x*(3+2*x^2) / ( (x-1)*(10*x-1)*(1+x+x^2) ). - _R. J. Mathar_, Aug 04 2013
%o (PARI) Vec(x*(3+2*x^2)/((x-1)*(10*x-1)*(1+x+x^2)) + O(x^25)) \\ _Jinyuan Wang_, Apr 14 2020
%K nonn,base,easy
%O 1,1
%A _Clark Kimberling_
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