Number of 3Xn arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, without 2-loops.
A221353
Number of 3Xn arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, without 2-loops.
Terms
- a(0) =0a(1) =7a(2) =370a(3) =12296a(4) =364868a(5) =10612940a(6) =304064432a(7) =8672312531a(8) =246687608692
External references
- oeis: A221353