Number of (n+1)X7 0..6 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements.
A203885
Number of (n+1)X7 0..6 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements.
Terms
- a(0) =236513641a(1) =195759462871
External references
- oeis: A203885