|
%I #8 Dec 26 2022 09:12:01
%S 5,16,52,172,580,1996,7012,25132,91780,340876,1284772,4902892,
%T 18902980,73486156,287567332,1131137452,4467154180,17696429836,
%U 70269158692,279526952812,1113458765380
%N a(n) = 4*3^n+4^n.
%F a(n)=7*a(n-1)-12*a(n-2) = 4*3^n+4^n. G.f.: (5-19x)/((1-4x)(1-3x)). [From _R. J. Mathar_, Nov 09 2008]
%K nonn,easy,less
%O 0,1
%A _Roger L. Bagula_, Nov 06 2008
%E Meaningful name from _Joerg Arndt_, Dec 26 2022
|
