Equals one maps: number of n X 4 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal, vertical and antidiagonal neighbors in a random 0..3 n X 4 array.
A221022
Equals one maps: number of n X 4 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal, vertical and antidiagonal neighbors in a random 0..3 n X 4 array.
Terms
- a(0) =8a(1) =168a(2) =3474a(3) =62944a(4) =1038208a(5) =16735744a(6) =268269568a(7) =4294303744a(8) =68716822528
External references
- oeis: A221022