Number of (n+2)X(2+2) 0..3 arrays with every consecutive three elements in every row and column having exactly two distinct values, and new values 0 upwards introduced in row major order.

A252900

Number of (n+2)X(2+2) 0..3 arrays with every consecutive three elements in every row and column having exactly two distinct values, and new values 0 upwards introduced in row major order.

Terms

    a(0) =2793a(1) =30453a(2) =306680a(3) =3255537a(4) =33858062a(5) =357165303a(6) =3740990254a(7) =39381278095a(8) =413451112737

External references