Number of n X n symmetric binary matrices with each 1 adjacent to no more than 1 king-move neighboring 1.
A191477
Number of n X n symmetric binary matrices with each 1 adjacent to no more than 1 king-move neighboring 1.
Terms
- a(0) =2a(1) =5a(2) =15a(3) =92a(4) =716a(5) =8595a(6) =156804a(7) =4204649a(8) =170016558a(9) =10240395108a(10) =922770471915
External references
- oeis: A191477