A134012 - OEIS

%I #29 Oct 09 2024 06:35:10

%S 1,6,11,6,1,1,6,11,6,1,1,6,11,6,1,1,6,11,6,1,1,6,11,6,1,1,6,11,6,1,1,

%T 6,11,6,1,1,6,11,6,1,1,6,11,6,1,1,6,11,6,1,1,6,11,6,1,1,6,11,6,1,1,6,

%U 11,6,1,1,6,11,6,1,1,6,11,6,1,1,6,11,6,1

%N Period 5: repeat 1, 6, 11, 6, 1.

%H <a href="/index/Rec#order_05">Index entries for linear recurrences with constant coefficients</a>, signature (0,0,0,0,1).

%F G.f. -(x^2+3*x+1)^2 / ( (x-1)*(1+x+x^2+x^3+x^4) ). - _R. J. Mathar_, Apr 02 2011

%t PadRight[{},100,{1,6,11,6,1}] (* _Harvey P. Dale_, Jul 05 2022 *)

%o (PARI) a(n)=11-5*abs(n%5-2) \\ _Jaume Oliver Lafont_, Aug 28 2009

%K nonn,easy

%O 0,2

%A _Paul Curtz_, Jan 10 2008