Number of (n+1)X(n+1) 0..2 arrays with the determinants of 2X2 subblocks nondecreasing rightwards and downwards.
A205207
Number of (n+1)X(n+1) 0..2 arrays with the determinants of 2X2 subblocks nondecreasing rightwards and downwards.
Terms
- a(0) =81a(1) =3248a(2) =357812a(3) =155765726a(4) =209120030041
External references
- oeis: A205207