Number of (n+1)X5 0..2 arrays with the determinants of 2X2 subblocks nondecreasing rightwards and downwards.
A205211
Number of (n+1)X5 0..2 arrays with the determinants of 2X2 subblocks nondecreasing rightwards and downwards.
Terms
- a(0) =8128a(1) =203313a(2) =5500266a(3) =155765726a(4) =4357148705a(5) =126335408689
External references
- oeis: A205211