Sum of neighbor maps: number of nX3 binary arrays indicating the locations of corresponding elements equal to the sum mod 4 of their king-move neighbors in a random 0..3 nX3 array.
A221067
Sum of neighbor maps: number of nX3 binary arrays indicating the locations of corresponding elements equal to the sum mod 4 of their king-move neighbors in a random 0..3 nX3 array.
Terms
- a(0) =8a(1) =20a(2) =512a(3) =4096a(4) =26976a(5) =262144a(6) =2097152a(7) =16401664a(8) =134217728a(9) =1073741824a(10) =8572235776a(11) =68719476736a(12) =549755813888
External references
- oeis: A221067