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%I #18 Dec 14 2023 05:30:49
%S 3,30,302,3021,30213,302130,3021302,30213021,302130213,3021302130,
%T 30213021302,302130213021,3021302130213,30213021302130,
%U 302130213021302,3021302130213021
%N Decimal expansion of a(n) is given by the first n terms of the periodic sequence with initial period 3,0,2,1.
%H <a href="/index/Rec#order_05">Index entries for linear recurrences with constant coefficients</a>, signature (10,0,0,1,-10).
%F G.f.: x*(3+2*x^2+x^3) / ( (x-1)*(10*x-1)*(1+x)*(x^2+1) ). - _R. J. Mathar_, Aug 04 2013
%o (PARI) Vec(x*(3+2*x^2+x^3)/((x-1)*(10*x-1)*(1+x)*(x^2+1)) + O(x^25)) \\ _Jinyuan Wang_, Apr 14 2020
%K nonn,base,easy
%O 1,1
%A _Clark Kimberling_
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