Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,3,2,1,0 for x=0,1,2,3,4.
A197216
Number of nX7 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,3,2,1,0 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =73a(2) =1537a(3) =30940a(4) =706153a(5) =15034832a(6) =322715244a(7) =6984694296a(8) =150562726618
External references
- oeis: A197216