Number of 3Xn integer arrays with each element equal to the number of horizontal, diagonal and antidiagonal neighbors less than itself.

A265983

Number of 3Xn integer arrays with each element equal to the number of horizontal, diagonal and antidiagonal neighbors less than itself.

Terms

    a(0) =1a(1) =123a(2) =1267a(3) =11573a(4) =320641a(5) =8061815a(6) =133236904a(7) =2362292183a(8) =49521535540

External references