Number of n X n symmetric binary matrices with each 1 adjacent to exactly 1 diagonally neighboring 1.
A191006
Number of n X n symmetric binary matrices with each 1 adjacent to exactly 1 diagonally neighboring 1.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =24a(4) =144a(5) =1296a(6) =16848a(7) =320112a(8) =8963136a(9) =367488576a(10) =22049314560
External references
- oeis: A191006