Number of 4Xn 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, diagonally or antidiagonally, and top left element zero.
A232958
Number of 4Xn 0..3 arrays with no element x(i,j) adjacent to value 3-x(i,j) horizontally, diagonally or antidiagonally, and top left element zero.
Terms
- a(0) =64a(1) =1029a(2) =27441a(3) =685251a(4) =17429409a(5) =442227825a(6) =11228712351a(7) =285082486341
External references
- oeis: A232958