Number of nX3 arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, without move-in move-out straight through or left turns.
A221814
Number of nX3 arrays of occupancy after each element moves to some horizontal, diagonal or antidiagonal neighbor, without move-in move-out straight through or left turns.
Terms
- a(0) =0a(1) =16a(2) =14a(3) =379a(4) =1052a(5) =11079a(6) =47390a(7) =361950a(8) =1871008a(9) =12486680a(10) =70263638a(11) =442461347a(12) =2585100812a(13) =15871512853a(14) =94285153508a(15) =572472852419
External references
- oeis: A221814