A024081 - OEIS

%I #12 Sep 08 2022 08:44:48

%S 1,6,-15,-386,-1695,1182,70993,705894,5502657,39822166,281475249,

%T 1975555182,13838301217,96884183598,678215543313,4747550119318,

%U 33232913792385,232630489849638,1628413563898225,11398895138327262

%N a(n) = 7^n - n^6.

%H Vincenzo Librandi, <a href="/A024081/b024081.txt">Table of n, a(n) for n = 0..400</a>

%H <a href="/index/Rec#order_08">Index entries for linear recurrences with constant coefficients</a>, signature (14,-70,182,-280,266,-154,50,-7).

%t Table[7^n-n^6,{n,0,30}] (* _Harvey P. Dale_, May 28 2019 *)

%o (Magma) [7^n-n^6: n in [0..20]]; // Vincenzo Librandi, Jul 2011

%K sign,easy

%O 0,2

%A _N. J. A. Sloane_.