Number of 3 X n arrays of occupancy after each element moves to some horizontal or antidiagonal neighbor, without move-in move-out straight through or left turns.
A221757
Number of 3 X n 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) =4a(2) =0a(3) =43a(4) =44a(5) =736a(6) =1680a(7) =14548a(8) =47314a(9) =307629a(10) =1201506a(11) =6768794a(12) =29159864a(13) =152481584a(14) =692301668a(15) =3481342319a(16) =16253985408a(17) =80073291120a(18) =379418253880
External references
- oeis: A221757