Number of n X n symmetric binary arrays with path of adjacent 1's from upper right corner to lower left corner.
A069344
Number of n X n symmetric binary arrays with path of adjacent 1's from upper right corner to lower left corner.
Terms
- a(0) =1a(1) =3a(2) =19a(3) =246a(4) =6486a(5) =346550a(6) =37410572a(7) =8142026722
External references
- oeis: A069344