Number of nX3 0..n*3-1 arrays with upper left zero and lower right n*3-1 and each element differing from its horizontal, vertical and antidiagonal neighbors by a power of two.
A265596
Number of nX3 0..n*3-1 arrays with upper left zero and lower right n*3-1 and each element differing from its horizontal, vertical and antidiagonal neighbors by a power of two.
Terms
- a(0) =1a(1) =4a(2) =0a(3) =177a(4) =2228a(5) =0a(6) =534268a(7) =1808623a(8) =0a(9) =221771015a(10) =9350721457a(11) =0a(14) =0a(17) =0a(20) =0
External references
- oeis: A265596