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A155625 11^n+4^n-1. 15

%I #12 Jun 12 2015 15:26:54

%S 1,14,136,1394,14896,162074,1775656,19503554,214424416,2358209834,

%T 25938473176,285315864914,3138445153936,34522779252794,

%U 379750102018696,4177249243157474,45949734158539456,505447045679162954

%N 11^n+4^n-1.

%H <a href="/index/Rec">Index entries for linear recurrences with constant coefficients</a>, signature (16,-59,44).

%F G.f.: 1/(1-11*x)+1/(1-4*x)-1/(1-x). E.g.f.: e^(11*x)+e^(4*x)-e^x.

%F a(n)=15*a(n-1)-44*a(n-2)-30 with a(0)=1, a(1)=14 - _Vincenzo Librandi_, Jul 21 2010

%o (PARI) a(n)=11^n+4^n-1 \\ _Charles R Greathouse IV_, Jun 11 2015

%Y Cf. A155588, A155589, A155590, A155592, A155593, A155594, A155595, A155596, A155597, A155598, A155599, A155600, A155601, A155622, A155623, A155624.

%K nonn,easy

%O 0,2

%A _Mohammad K. Azarian_, Jan 29 2009

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Last modified April 19 18:05 EDT 2024. Contains 371798 sequences. (Running on oeis4.)