Half the number of nX3 binary arrays with the number of 1-1 horizontal, vertical, diagonal and antidiagonal adjacencies equal to the number of 0-0 adjacencies.
A183284
Half the number of nX3 binary arrays with the number of 1-1 horizontal, vertical, diagonal and antidiagonal adjacencies equal to the number of 0-0 adjacencies.
Terms
- a(0) =1a(1) =6a(2) =1a(3) =180a(4) =116a(5) =8016a(6) =9746a(7) =398126a(8) =725872a(9) =20910204a(10) =50854089a(11) =1137666502a(12) =3437745554a(13) =63460798680a(14) =227195157189
External references
- oeis: A183284