Equals one maps: number of nX3 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and vertical neighbors in a random 0..2 nX3 array.
A220543
Equals one maps: number of nX3 binary arrays indicating the locations of corresponding elements equal to exactly one of their horizontal and vertical neighbors in a random 0..2 nX3 array.
Terms
- a(0) =4a(1) =38a(2) =395a(3) =3778a(4) =32126a(5) =261042a(6) =2095121a(7) =16773300a(8) =134209760a(9) =1073726672a(10) =8589906710a(11) =68719426436a(12) =549755721410
External references
- oeis: A220543