%I #20 Mar 03 2024 10:56:18
%S 1,11,16,-459,4352,170707,2706048,35008265,427884544,5154997383,
%T 61907364224,742988883517,8916064616448,106993142630555,
%U 1283918359135360,15407021403726993,184884258626600960
%N a(n) = 12^n - n^7.
%H Vincenzo Librandi, <a href="/A024147/b024147.txt">Table of n, a(n) for n = 0..300</a>
%H <a href="/index/Rec#order_09">Index entries for linear recurrences with constant coefficients</a>, signature (20, -124, 392, -742, 896, -700, 344, -97, 12).
%F From _Chai Wah Wu_, Jan 26 2020: (Start)
%F a(n) = 20*a(n-1) - 124*a(n-2) + 392*a(n-3) - 742*a(n-4) + 896*a(n-5) - 700*a(n-6) + 344*a(n-7) - 97*a(n-8) + 12*a(n-9) for n > 8.
%F G.f.: (-13*x^8 - 1431*x^7 - 14200*x^6 - 27745*x^5 - 11946*x^4 - 193*x^3 + 80*x^2 + 9*x - 1)/((x - 1)^8*(12*x - 1)). (End)
%t Array[12^# - #^7 &, 17, 0] (* _Michael De Vlieger_, Jan 26 2020 *)
%t LinearRecurrence[{20,-124,392,-742,896,-700,344,-97,12},{1,11,16,-459,4352,170707,2706048,35008265,427884544},20] (* _Harvey P. Dale_, May 09 2022 *)
%o (Magma) [12^n-n^7: n in [0..20]]; // _Vincenzo Librandi_, Jul 02 2011
%K sign,easy
%O 0,2
%A _N. J. A. Sloane_