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A139741 a(n) = 11^n - 3^n. 2

%I #20 Sep 08 2022 08:45:33

%S 0,8,112,1304,14560,160808,1770832,19484984,214352320,2357928008,

%T 25937365552,285311493464,3138427845280,34522710549608,

%U 379749828800272,4177248155066744,45949729820525440,505447028370153608,5559917313104810992,61159090447252284824

%N a(n) = 11^n - 3^n.

%H Vincenzo Librandi, <a href="/A139741/b139741.txt">Table of n, a(n) for n = 0..300</a>

%H <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (14,-33).

%F a(n) = 14*a(n-1) - 33*a(n-2). [_Vincenzo Librandi_, Jun 02 2011]

%F G.f.: 8*x / ((1 - 3*x)*(1 - 11*x)). [_Bruno Berselli_, Oct 05 2014]

%F a(n+1) = 8*A016146(n). [_Bruno Berselli_, Oct 05 2014]

%o (Magma) [11^n-3^n: n in [0..30]]; // _Vincenzo Librandi_, Jun 02 2011

%Y Cf. A016146, and similar sequences listed in A248225.

%K nonn,easy

%O 0,2

%A _N. J. A. Sloane_, May 20 2008

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Last modified April 23 06:04 EDT 2024. Contains 371906 sequences. (Running on oeis4.)