Number of (n+1)X(3+1) 0..2 arrays with the sum of each 2X2 subblock two extreme terms minus its two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise.
A236425
Number of (n+1)X(3+1) 0..2 arrays with the sum of each 2X2 subblock two extreme terms minus its two median terms lexicographically nondecreasing columnwise and nonincreasing rowwise.
Terms
- a(0) =2581a(1) =60193a(2) =1290539a(3) =24143945a(4) =414682711a(5) =6480932348a(6) =94263772244
External references
- oeis: A236425