Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,4,1,0,1 for x=0,1,2,3,4.
A197370
Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,4,1,0,1 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =17a(2) =189a(3) =899a(4) =7485a(5) =50831a(6) =355929a(7) =2503359a(8) =17611057a(9) =123747825a(10) =869308845a(11) =6110148907a(12) =42934775357a(13) =301710593001
External references
- oeis: A197370