Number of 7Xn 0..2 arrays with no element x(i,j) adjacent to value 2-x(i,j) horizontally, diagonally or antidiagonally.
A232926
Number of 7Xn 0..2 arrays with no element x(i,j) adjacent to value 2-x(i,j) horizontally, diagonally or antidiagonally.
Terms
- a(0) =2187a(1) =4374a(2) =106494a(3) =1502736a(4) =28178262a(5) =459797904a(6) =8119777890a(7) =137439977160
External references
- oeis: A232926