Number of n X n symmetric binary matrices with each 1 adjacent to no more than 5 king-move neighboring 1s.
A191481
Number of n X n symmetric binary matrices with each 1 adjacent to no more than 5 king-move neighboring 1s.
Terms
- a(0) =2a(1) =8a(2) =57a(3) =810a(4) =22619a(5) =1219719a(6) =127845270a(7) =26032342551
External references
- oeis: A191481