Number of nX7 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without move-in move-out straight through or left turns.
A221754
Number of nX7 arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without move-in move-out straight through or left turns.
Terms
- a(0) =0a(1) =171a(2) =1680a(3) =117067a(4) =3143356a(5) =128008894a(6) =4330440582a(7) =157745434617
External references
- oeis: A221754