Number of (n+1)X5 0..5 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements.
A203930
Number of (n+1)X5 0..5 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements.
Terms
- a(0) =527076a(1) =60873876a(2) =7748585676
External references
- oeis: A203930