Number of (3+1)X(n+1) 0..2 arrays with every element both >= and <= some horizontal or antidiagonal neighbor.

A232260

Number of (3+1)X(n+1) 0..2 arrays with every element both >= and <= some horizontal or antidiagonal neighbor.

Terms

    a(0) =163a(1) =4711a(2) =175431a(3) =7258599a(4) =304291873a(5) =12652519297a(6) =526801789327

External references