Number of (n+1)X(1+1) 0..3 arrays with the sum of each 2X2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise.
A235502
Number of (n+1)X(1+1) 0..3 arrays with the sum of each 2X2 subblock maximum and minimum lexicographically nondecreasing rowwise and columnwise.
Terms
- a(0) =256a(1) =2982a(2) =33640a(3) =343500a(4) =3415268a(5) =32611962a(6) =306033109a(7) =2817787860a(8) =25672159052a(9) =231626605740
External references
- oeis: A235502