Number of (n+1)X(4+1) 0..1 arrays with every element equal to some horizontal, vertical or antidiagonal neighbor, with top left element zero.
A232034
Number of (n+1)X(4+1) 0..1 arrays with every element equal to some horizontal, vertical or antidiagonal neighbor, with top left element zero.
Terms
- a(0) =129a(1) =3588a(2) =94102a(3) =2504637a(4) =66684606a(5) =1775039591a(6) =47248648693
External references
- oeis: A232034