Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,2,1,3 for x=0,1,2,3,4.
A196717
Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,0,2,1,3 for x=0,1,2,3,4.
Terms
- a(0) =17a(1) =468a(2) =7368a(3) =222112a(4) =5443550a(5) =139260414a(6) =3464871506a(7) =87347779774
External references
- oeis: A196717