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%I #15 Oct 18 2017 18:01:26
%S 1,10,9,16,1,18,1,16,9,10,1,24,1,10,9,16,1,18,1,16,9,10,1,24,1,10,9,
%T 16,1,18,1,16,9,10,1,24,1,10,9,16,1,18,1,16,9,10,1,24,1,10,9,16,1,18,
%U 1,16,9,10,1,24,1,10,9,16,1,18,1,16,9,10,1,24,1,10,9,16,1,18,1,16
%N Periodic with period [1, 10, 9, 16, 1, 18, 1, 16, 9, 10, 1, 24] of length 12.
%H <a href="/index/Rec#order_06">Index entries for linear recurrences with constant coefficients</a>, signature (-1,-1,0,1,1,1).
%F a(n+12)=a(n).
%F G.f.: -x*(1+11*x+20*x^2+35*x^3+25*x^4+24*x^5) / ( (x-1)*(1+x)*(1+x+x^2)*(x^2+1) ). - _R. J. Mathar_, Mar 28 2017
%Y Row 4 of A008307.
%Y Cf. A284517.
%K nonn,easy
%O 1,2
%A _R. J. Mathar_, Mar 28 2017
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