|
%I #6 Mar 03 2024 14:42:24
%S 3,9,12,36,48,144,192,576,768,2304,3072,9216,12288,36864,49152,147456,
%T 196608,589824,786432,2359296,3145728,9437184,12582912,37748736,
%U 50331648,150994944,201326592,603979776,805306368,2415919104
%N a(n)=4a(n-2). Also 3*A084221.
%H <a href="/index/Rec#order_02">Index entries for linear recurrences with constant coefficients</a>, signature (0, 4).
%t RecurrenceTable[{a[1]==3,a[2]==9,a[n]==4*a[n-2]},a,{n,30}] (* or *) LinearRecurrence[ {0,4},{3,9},30] (* _Harvey P. Dale_, Sep 20 2018 *)
%K nonn
%O 0,1
%A _Paul Curtz_, Apr 21 2008
%E More terms from _Harvey P. Dale_, Sep 20 2018
|
