Number of n X n symmetric binary matrices with each 1 adjacent to no more than 6 king-move neighboring 1s.
A191482
Number of n X n symmetric binary matrices with each 1 adjacent to no more than 6 king-move neighboring 1s.
Terms
- a(0) =2a(1) =8a(2) =61a(3) =932a(4) =28310a(5) =1702795a(6) =202939372a(7) =47927020569
External references
- oeis: A191482