Number of (n+1) X (2+1) 0..1 arrays with every element equal to some horizontal, vertical or antidiagonal neighbor, with top left element zero.
A232032
Number of (n+1) X (2+1) 0..1 arrays with every element equal to some horizontal, vertical or antidiagonal neighbor, with top left element zero.
Terms
- a(0) =11a(1) =76a(2) =521a(3) =3588a(4) =24719a(5) =170270a(6) =1172854a(7) =8078859a(8) =55648831a(9) =383320506a(10) =2640389883a(11) =18187544432a(12) =125279518221a(13) =862950891715
External references
- oeis: A232032