Equals two maps: number of nX3 binary arrays indicating the locations of corresponding elements equal to exactly two of their king-move neighbors in a random 0..1 nX3 array.
A220244
Equals two maps: number of nX3 binary arrays indicating the locations of corresponding elements equal to exactly two of their king-move neighbors in a random 0..1 nX3 array.
Terms
- a(0) =2a(1) =18a(2) =143a(3) =816a(4) =4467a(5) =27192a(6) =158296a(7) =915920a(8) =5443662a(9) =31825008a(10) =185788218a(11) =1094039664a(12) =6406886173a(13) =37509117127a(14) =220173740293
External references
- oeis: A220244