Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,3,2,0,1 for x=0,1,2,3,4.
A197088
Number of nX6 0..4 arrays with each element x equal to the number its horizontal and vertical neighbors equal to 4,3,2,0,1 for x=0,1,2,3,4.
Terms
- a(0) =1a(1) =65a(2) =1780a(3) =37952a(4) =939690a(5) =21996614a(6) =522569033a(7) =12390326286a(8) =293837693200
External references
- oeis: A197088