Number of (n+1) X (2+1) 0..3 arrays with no 2 X 2 subblock having its maximum diagonal element less than its minimum antidiagonal element.
A251277
Number of (n+1) X (2+1) 0..3 arrays with no 2 X 2 subblock having its maximum diagonal element less than its minimum antidiagonal element.
Terms
- a(0) =3264a(1) =164800a(2) =8320896a(3) =420152704a(4) =21215177472
External references
- oeis: A251277