Number of (n+1)X(7+1) 0..3 arrays with nondecreasing sum of every two consecutive values in every row and column.
A251973
Number of (n+1)X(7+1) 0..3 arrays with nondecreasing sum of every two consecutive values in every row and column.
Terms
- a(0) =1500625a(1) =294122500a(2) =57648010000
External references
- oeis: A251973