708294

Appears in sequences

• Number of nX3 0..1 arrays with every element unequal to 0, 1, 2 or 3 king-move adjacent elements, with upper left element zero.at n=18A303722
• G.f. A(x) satisfies: A(x) = 1/((1-x*B(x)^2)*(1-x*C(x)^3)) such that B(x) = 1/((1-x*A(x))*(1-x*C(x)^3)) and C(x) = 1/((1-x*A(x))*(1-x*B(x)^2)) are the g.f.s of A341955 and A341956, respectively.at n=7A341954