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Fourth quadrisection of A140287.
1

%I #12 Jan 02 2024 09:04:04

%S -1,2,-4,9,-25,82,-284,969,-3185,10082,-30964,93129,-276745,818482,

%T -2421644,7188489,-21428705,64121282,-192388324,578087049,-1737827065,

%U 5223134482,-15690187004,47105428809,-141351839825,424023394082,-1271763913684

%N Fourth quadrisection of A140287.

%H <a href="/index/Rec">Index entries for linear recurrences with constant coefficients</a>, signature (-7,-17,-15).

%F a(n)=-7a(n-1)-17a(n-2)-15a(n-3).

%F G.f.: -(7*x^2+5*x+1)/((3*x+1)*(5*x^2+4*x+1)). - _Colin Barker_, Jul 10 2012

%Y Cf. A127055; .

%K sign,easy

%O 0,2

%A _Paul Curtz_, May 24 2008

%E More terms from _Colin Barker_, Jul 10 2012