Number of (n+1)X2 0..3 arrays with the number of clockwise edge increases in 2X2 subblocks nondecreasing rightwards and downwards.
A205928
Number of (n+1)X2 0..3 arrays with the number of clockwise edge increases in 2X2 subblocks nondecreasing rightwards and downwards.
Terms
- a(0) =256a(1) =3036a(2) =32208a(3) =319784a(4) =3048544a(5) =28259556a(6) =256692580a(7) =2295975140a(8) =20290062176a(9) =177581881904
External references
- oeis: A205928