Number of (n+1) X (2+1) 0..2 arrays with every 2 X 2 subblock sum differing from its neighbors horizontally, vertically and nw-se diagonally.
A253160
Number of (n+1) X (2+1) 0..2 arrays with every 2 X 2 subblock sum differing from its neighbors horizontally, vertically and nw-se diagonally.
Terms
- a(0) =558a(1) =5136a(2) =46752a(3) =443362a(4) =4189216a(5) =39478862a(6) =371551030a(7) =3500351616a(8) =32968666098a(9) =310607972526
External references
- oeis: A253160