Number of 2 X n 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors.
A283858
Number of 2 X n 0..1 arrays with no 1 equal to more than three of its horizontal, diagonal and antidiagonal neighbors.
Terms
- a(0) =4a(1) =16a(2) =61a(3) =233a(4) =896a(5) =3444a(6) =13225a(7) =50789a(8) =195076a(9) =749256a(10) =2877717a(11) =11052673a(12) =42450984a(13) =163045180a(14) =626221537a(15) =2405182717a(16) =9237791852a(17) =35480380112a(18) =136272540429a(19) =523393640665
External references
- oeis: A283858