0 votes 0 votes In how many ways can a $2 \times n$ rectangular checkerboard be tiled using $1 \times 2 \:\text{and}\: 2 \times 2$ pieces? Combinatory kenneth-rosen discrete-mathematics counting recurrence-relation descriptive + – admin asked May 3, 2020 admin 295 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.