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%I #17 Dec 14 2023 05:15:06
%S 1,4,0,0,0,1,4,0,0,0,1,4,0,0,0,1,4,0,0,0,1,4,0,0,0,1,4,0,0,0,1,4,0,0,
%T 0,1,4,0,0,0,1,4,0,0,0,1,4,0,0,0,1,4,0,0,0,1,4,0,0,0,1,4,0,0,0,1,4,0,
%U 0,0,1,4,0,0,0,1,4,0,0,0,1,4,0,0,0,1,4,0,0,0,1,4,0,0,0,1,4,0,0,0,1,4,0,0,0
%N Periodic sequence [1,4,0,0,0] of period 5.
%H <a href="/index/Rec#order_05">Index entries for linear recurrences with constant coefficients</a>, signature (0,0,0,0,1).
%F a(n+5) = a(n) with a(0) = 1, a(1) = 4 and a(2) = a(3) = a(4) = 0.
%F G.f.: (1+4*z)/(1-z^5).
%t PadRight[{},110,{1,4,0,0,0}] (* _Harvey P. Dale_, Jan 21 2012 *)
%Y Cf. A026065.
%K easy,nonn
%O 0,2
%A _Richard Choulet_, Dec 14 2008
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