%I

%S 1,8,26,66,150,322,670,1370,2774,5586,11214,22474,44998,90050,180158,

%T 360378,720822,1441714,2883502,5767082,11534246,23068578,46137246,

%U 92274586,184549270,369098642,738197390,1476394890,2952789894

%N 11*2^n - 4*n - 10.

%e a(3) = 11*2^3 - 4*3 - 10 = 66

%Y Row sums of A051668.

%K easy,nonn

%O 0,2

%A Asher Auel (asher.auel(AT)reed.edu)