Number of nX7 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.
A197647
Number of nX7 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) =595a(2) =49381a(3) =2579814a(4) =132750533a(5) =8248011722a(6) =520354155777
External references
- oeis: A197647