Number of (n+1)X3 0..2 arrays with the number of clockwise edge increases in 2X2 subblocks nondecreasing rightwards and downwards.
A206506
Number of (n+1)X3 0..2 arrays with the number of clockwise edge increases in 2X2 subblocks nondecreasing rightwards and downwards.
Terms
- a(0) =549a(1) =7737a(2) =93405a(3) =1020756a(4) =10505604a(5) =103812645a(6) =997160112a(7) =9383642739a(8) =86977382523a(9) =797102746356
External references
- oeis: A206506