Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,3,0,1,2 for x=0,1,2,3,4.
A197234
Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,3,0,1,2 for x=0,1,2,3,4.
Terms
- a(0) =13a(1) =465a(2) =24723a(3) =1207249a(4) =56349129a(5) =2633810897a(6) =126615582841
External references
- oeis: A197234