Number of X-based filling of diagonals in a diagonal Latin square of order n.

A337303

Number of X-based filling of diagonals in a diagonal Latin square of order n.

Terms

    a(0) =1a(1) =1a(2) =0a(3) =0a(4) =96a(5) =480a(6) =57600a(7) =403200a(8) =191600640a(9) =1724405760

External references