Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,2,1,1,1 for x=0,1,2,3,4.
A197779
Number of nX5 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 3,2,1,1,1 for x=0,1,2,3,4.
Terms
- a(0) =4a(1) =124a(2) =1646a(3) =25962a(4) =384758a(5) =5833286a(6) =88309448a(7) =1329981026a(8) =20064521716a(9) =303052845328
External references
- oeis: A197779