Number of 4 X n 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.
A284225
Number of 4 X n 0..1 arrays with the number of 1's horizontally or antidiagonally adjacent to some 0 equal to the number of 0's adjacent to some 1, with top left element zero.
Terms
- a(0) =8a(1) =62a(2) =467a(3) =6511a(4) =85887a(5) =1214427a(6) =17538010a(7) =258414316a(8) =3854276528a(9) =58011648676a(10) =879122723506
External references
- oeis: A284225