A017068 - OEIS

%I #14 Sep 08 2022 08:44:41

%S 0,4096,65536,331776,1048576,2560000,5308416,9834496,16777216,

%T 26873856,40960000,59969536,84934656,116985856,157351936,207360000,

%U 268435456,342102016,429981696,533794816,655360000

%N a(n) = (8*n)^4.

%H Vincenzo Librandi, <a href="/A017068/b017068.txt">Table of n, a(n) for n = 0..10000</a>

%H <a href="/index/Rec#order_05">Index entries for linear recurrences with constant coefficients</a>, signature (5,-10,10,-5,1).

%F G.f.: -4096*x*(1+x)*(x^2 + 10*x + 1)/(x-1)^5. - _R. J. Mathar_, Jul 14 2016

%t (8*Range[0,20])^4 (* or *) LinearRecurrence[{5,-10,10,-5,1},{0,4096,65536,331776,1048576},30] (* _Harvey P. Dale_, Aug 16 2016 *)

%o (Magma) [(8*n)^4: n in [0..35]]; // _Vincenzo Librandi_, Jul 11 2011

%K nonn,easy

%O 0,2

%A _N. J. A. Sloane_