Number of (n+1)X(4+1) 0..1 arrays with every element equal to some horizontal, diagonal or antidiagonal neighbor, with top left element zero.
A232072
Number of (n+1)X(4+1) 0..1 arrays with every element equal to some horizontal, diagonal or antidiagonal neighbor, with top left element zero.
Terms
- a(0) =161a(1) =3681a(2) =91636a(3) =2265691a(4) =56126173a(5) =1389867384a(6) =34420057373a(7) =852404560481
External references
- oeis: A232072