1/3 the number of nX5 0..2 arrays with no element equal both to the element above and to the element to its left.

A184690

1/3 the number of nX5 0..2 arrays with no element equal both to the element above and to the element to its left.

Terms

    a(0) =81a(1) =12288a(2) =1841856a(3) =275895264a(4) =41325395328

External references