A Tiling of the Plane by specified types of Polyominoes. Interestingly, the Fibonacci Number gives the number of ways for dominoes to cover a checkerboard.
See also Fibonacci Number
References
Polyominoes
Gardner, M. ``Tiling with Polyominoes, Polyiamonds, and Polyhexes.'' Ch. 14 in
Time Travel and Other Mathematical Bewilderments. New York: W. H. Freeman, 1988.