A350023 Number of diagonal semisymmetric Latin squares of order n.

1, 0, 3, 2, 30, 0, 3000, 20160, 19571328, 8136806400, 13826847640320, 113788019281305600

Offset: 1

Author

Ian Wanless, Dec 08 2021

Keywords

• nonn
• more

Comments

"Diagonal" means that the symbols on the main diagonal must all be different.

Links

• Brendan D. McKay and Ian M. Wanless, Enumeration of Latin squares with conjugate symmetry, J. Combin. Des. 30 (2022), 105-130.

Crossrefs

Cf. A350022, A350024.