Equals one maps: number of n X 4 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and vertical neighbors in a random 0..3 n X 4 array.
A220749
Equals one maps: number of n X 4 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and vertical neighbors in a random 0..3 n X 4 array.
Terms
- a(0) =8a(1) =176a(2) =3778a(3) =65084a(4) =1048014a(5) =16776688a(6) =268434892a(7) =4294966696a(8) =68719476100
External references
- oeis: A220749