63296

Appears in sequences

• a(n) = 2*a(n-1) + 2*a(n-2) for n > 1; a(0)=2, a(1)=2.at n=11A080040
• a(n) = floor((1+sqrt(3))^n).at n=11A080041
• Expansion of 2*(1+2*x) / (1-8*x+4*x^2).at n=5A270444
• Number of nX6 0..1 arrays with every element equal to 0, 1, 2 or 4 king-move adjacent elements, with upper left element zero.at n=19A297887
• G.f. A(x) satisfies: A(x) = 1/(1 - x^a(0) - x^a(1) - x^a(2) - x^a(3) - ...) - x.at n=15A307545