a(n) is the number of tilings of the Aztec diamond of order n using dominoes and square tetrominoes.

A356512

a(n) is the number of tilings of the Aztec diamond of order n using dominoes and square tetrominoes.

Terms

    a(0) =1a(1) =3a(2) =19a(3) =293a(4) =10917a(5) =996599a(6) =222222039a(7) =121552500713

External references