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%I #7 Dec 26 2022 08:47:42
%S 5,18,64,228,820,2988,11044,41388,157060,602508,2332324,9095148,
%T 35676100,140586828,555986404,2204846508,8762055940,34876167948,
%U 138988373284,554404335468,2212969344580
%N a(n) = 2*4^n+4*3^n-2^n.
%F a(n) = 9*a(n-1)-26*a(n-2)+24*a(n-3) = 2*4^n+4*3^n-2^n. G.f.: (5-27x+32x^2)/((1-2x)(1-3x)(1-4x)). [_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
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