Number of nX6 0..n+6-2 arrays with upper left zero and lower right n+6-2 and each element differing from its diagonal and antidiagonal neighbors by one or two.
A265478
Number of nX6 0..n+6-2 arrays with upper left zero and lower right n+6-2 and each element differing from its diagonal and antidiagonal neighbors by one or two.
Terms
- a(0) =1296a(1) =55800a(2) =26904969a(3) =3120703104
External references
- oeis: A265478