Number of (n+1)X(2+1) 0..2 arrays with every 2X2 subblock sum differing from its neighbors horizontally, vertically, diagonally and antidiagonally.
A253290
Number of (n+1)X(2+1) 0..2 arrays with every 2X2 subblock sum differing from its neighbors horizontally, vertically, diagonally and antidiagonally.
Terms
- a(0) =558a(1) =3600a(2) =23546a(3) =167832a(4) =1184928a(5) =8243488a(6) =57474376a(7) =402165016a(8) =2811886280a(9) =19648735840a(10) =137308874176a(11) =959744819720
External references
- oeis: A253290