Number of (n+1)X(n+1) 0..3 arrays with the determinants of 2X2 subblocks nondecreasing rightwards and downwards.
A205019
Number of (n+1)X(n+1) 0..3 arrays with the determinants of 2X2 subblocks nondecreasing rightwards and downwards.
Terms
- a(0) =256a(1) =27611a(2) =7148335a(3) =11646996582
External references
- oeis: A205019