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a(n) = 11^n - n^5.
2

%I #23 Sep 08 2022 08:44:48

%S 1,10,89,1088,13617,157926,1763785,19470364,214326113,2357888642,

%T 25937324601,285311509560,3138428127889,34522711772638,

%U 379749833045417,4177248168656276,45949729862523585,505447028497873914

%N a(n) = 11^n - n^5.

%H Vincenzo Librandi, <a href="/A024132/b024132.txt">Table of n, a(n) for n = 0..300</a>

%H <a href="/index/Rec">Index entries for linear recurrences with constant coefficients</a>, signature (17,-81,185,-235,171,-67,11)

%F G.f.: ( -1 + 7*x - 200*x^3 - 715*x^4 - 279*x^5 - 12*x^6 ) / ( (11*x-1)*(x-1)^6 ). - _R. J. Mathar_, Apr 04 2011

%t Table[11^n-n^5,{n,0,20}] (* _Harvey P. Dale_, Apr 03 2011 *)

%o (Magma) [11^n-n^5: n in [0..50]]; // _Vincenzo Librandi_, Apr 04 2011

%o (PARI) a(n)=11^n-n^5 \\ _Charles R Greathouse IV_, Jul 01 2011

%K nonn,easy

%O 0,2

%A _N. J. A. Sloane_