Number of nX4 0..1 arrays with no 1 equal to more than two of its horizontal and vertical neighbors, with the exception of exactly one element.

A283199

Number of nX4 0..1 arrays with no 1 equal to more than two of its horizontal and vertical neighbors, with the exception of exactly one element.

Terms

    a(0) =0a(1) =36a(2) =868a(3) =16048a(4) =263232a(5) =4024168a(6) =59065412a(7) =842673912a(8) =11773250320a(9) =161892233968

External references