Number of matchings in the 4 X n rook graph.

A341503

Number of matchings in the 4 X n rook graph.

Terms

    a(0) =1a(1) =10a(2) =193a(3) =5950a(4) =270529a(5) =16873930a(6) =1384880065a(7) =144218696590

External references