Number of (n+1)X7 0..1 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements.
A203376
Number of (n+1)X7 0..1 arrays with every 2X2 subblock having equal diagonal elements or equal antidiagonal elements.
Terms
- a(0) =2916a(1) =70996a(2) =1764360a(3) =44183028a(4) =1109832180a(5) =27913330472a(6) =702420750924
External references
- oeis: A203376