Number of nX2 0..n*2-1 arrays with upper left zero and lower right n*2-1 and each element differing from its horizontal, vertical and antidiagonal neighbors by a power of two.
A265595
Number of nX2 0..n*2-1 arrays with upper left zero and lower right n*2-1 and each element differing from its horizontal, vertical and antidiagonal neighbors by a power of two.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =8a(4) =166a(5) =257a(6) =1627a(7) =19283a(8) =90682a(9) =542663a(10) =6657907a(11) =21585283a(12) =151468895a(13) =1794394408a(14) =6074973762a(15) =38138795310a(16) =768443343629
External references
- oeis: A265595