Sum of neighbor maps: number of n X 3 binary arrays indicating the locations of corresponding elements equal to the sum mod 3 of their horizontal, diagonal and antidiagonal neighbors in a random 0..2 n X 3 array.
A221664
Sum of neighbor maps: number of n X 3 binary arrays indicating the locations of corresponding elements equal to the sum mod 3 of their horizontal, diagonal and antidiagonal neighbors in a random 0..2 n X 3 array.
Terms
- a(0) =8a(1) =64a(2) =512a(3) =3772a(4) =32768a(5) =262144a(6) =2097152a(7) =16777216a(8) =134140928a(9) =1073741824a(10) =8589934592a(11) =68719476736a(12) =549755813888
External references
- oeis: A221664