Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,2,2,0,2 for x=0,1,2,3,4.
A197646
Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,2,2,0,2 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =185a(2) =9007a(3) =251972a(4) =7296769a(5) =243912221a(6) =8248011722a(7) =265348341492
External references
- oeis: A197646