Number of 4Xn arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without consecutive moves in the same direction.
A221486
Number of 4Xn arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without consecutive moves in the same direction.
Terms
- a(0) =0a(1) =64a(2) =313a(3) =34751a(4) =802711a(5) =37622097a(6) =1219698562a(7) =47497298437
External references
- oeis: A221486