Equals one maps: number of nX4 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and antidiagonal neighbors in a random 0..3 nX4 array.
A221060
Equals one maps: number of nX4 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and antidiagonal neighbors in a random 0..3 nX4 array.
Terms
- a(0) =8a(1) =172a(2) =3322a(3) =58710a(4) =989020a(5) =16261308a(6) =263988148a(7) =4256750870a(8) =68391745316
External references
- oeis: A221060