Number of (n+1)X(3+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 6 and no adjacent elements equal.

A233728

Number of (n+1)X(3+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 6 and no adjacent elements equal.

Terms

    a(0) =556a(1) =3972a(2) =29816a(3) =233432a(4) =1851404a(5) =14802604a(6) =118695412a(7) =953471940a(8) =7663964828a(9) =61629254552a(10) =495650497344

External references