%I #6 Mar 30 2012 17:40:04

%S 1,1,2,16,116,676,3452,16276,72956,316276,1340252,5590036,23054396,

%T 94314676,383578652,1553331796,6270493436,25253701876,101530450652,

%U 407669649556,1635323974076,6555235693876,26262769508252

%N a(n) = 9 a (n-1)-26 a(n-2) +24 a(n-3) (n >= 3) with a(0) =a(1)=1, a(2)=2.

%C The above sequence also satisfies a(n)-6 a(n-1)+8 a(n-2)=4*3^{n-2} (n >= 3) with a(0)= a(1)=1.

%F a(n)=7*2^(n-1)+3*2^(2*n-1)-4*3^n. G.f.: -(1-8*x+19*x^2)/((3*x-1)*(2*x-1)*(4*x-1)) [From _R. J. Mathar_, Jul 13 2009]

%K nonn

%O 0,3

%A Tian-Xiao He (the(AT)iwu.edu), Jul 11 2009

%E More terms from Vincenzo Librandi and _R. J. Mathar_, Jul 13 2009