Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,0,1 for x=0,1,2,3,4.
A197676
Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 2,0,1,0,1 for x=0,1,2,3,4.
Terms
- a(0) =9a(1) =73a(2) =721a(3) =5639a(4) =45162a(5) =358209a(6) =2871646a(7) =22955155a(8) =183536379a(9) =1469158622a(10) =11763937411a(11) =94210675699a(12) =754505710941
External references
- oeis: A197676