Number of matchings in the 3 X n rook graph.

A341502

Number of matchings in the 3 X n rook graph.

Terms

    a(0) =1a(1) =4a(2) =32a(3) =370a(4) =5950a(5) =122984a(6) =3175696a(7) =98815588a(8) =3638940860a(9) =155377163440

External references