Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,1,1,0,0 for x=0,1,2,3,4.
A197449
Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,1,1,0,0 for x=0,1,2,3,4.
Terms
- a(0) =16a(1) =957a(2) =88767a(3) =6455759a(4) =504568165a(5) =40087361395
External references
- oeis: A197449