Number of nX4 integer arrays with each element equal to the number of horizontal and antidiagonal neighbors less than itself.
A266029
Number of nX4 integer arrays with each element equal to the number of horizontal and antidiagonal neighbors less than itself.
Terms
- a(0) =11a(1) =315a(2) =5594a(3) =118489a(4) =2482216a(5) =52086421a(6) =1092258910a(7) =22909266015a(8) =480473869537
External references
- oeis: A266029