Number of ways to tile an n X n square with 1 X 1 and 2 X 2 tiles.

A063443

Number of ways to tile an n X n square with 1 X 1 and 2 X 2 tiles.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =5a(4) =35a(5) =314a(6) =6427a(7) =202841a(8) =12727570a(9) =1355115601a(10) =269718819131

External references