Number of domino tilings (or dimer coverings) of a 2n X 2n square.

A004003

Number of domino tilings (or dimer coverings) of a 2n X 2n square.

Terms

    a(0) =1a(1) =2a(2) =36a(3) =6728a(4) =12988816a(5) =258584046368

External references