Number of n X n 0..1 arrays with each 1 adjacent to 0, 2 or 4 king-move neighboring 1's.
A296718
Number of n X n 0..1 arrays with each 1 adjacent to 0, 2 or 4 king-move neighboring 1's.
Terms
- a(0) =2a(1) =9a(2) =69a(3) =1463a(4) =72533a(5) =6829945a(6) =1554755519a(7) =795154816254
External references
- oeis: A296718