Number of (n+2)X(4+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.
A252902
Number of (n+2)X(4+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) =139968a(1) =3255537a(2) =66702186a(3) =1470299799a(4) =31496378270a(5) =686625400736
External references
- oeis: A252902