Sum of neighbor maps: number of nX3 binary arrays indicating the locations of corresponding elements equal to the sum mod 4 of their horizontal, vertical and antidiagonal neighbors in a random 0..3 nX3 array.
A222446
Sum of neighbor maps: number of nX3 binary arrays indicating the locations of corresponding elements equal to the sum mod 4 of their horizontal, vertical and antidiagonal neighbors in a random 0..3 nX3 array.
Terms
- a(0) =8a(1) =64a(2) =420a(3) =4056a(4) =32720a(5) =262104a(6) =2082688a(7) =16777216a(8) =134217728a(9) =1073741824a(10) =8588539008a(11) =68719476736a(12) =549755813888
External references
- oeis: A222446