Number of (n+1)X6 0..1 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements.
A203375
Number of (n+1)X6 0..1 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements.
Terms
- a(0) =972a(1) =15564a(2) =253068a(3) =4136292a(4) =67731264a(5) =1109832180a(6) =18189909480a(7) =298154846436
External references
- oeis: A203375