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Number of diagonal semisymmetric Latin squares of order n.
2

%I #10 Dec 10 2021 11:09:49

%S 1,0,3,2,30,0,3000,20160,19571328,8136806400,13826847640320,

%T 113788019281305600

%N Number of diagonal semisymmetric Latin squares of order n.

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

%H Brendan D. McKay and Ian M. Wanless, <a href="https://doi.org/10.1002/jcd.21814">Enumeration of Latin squares with conjugate symmetry</a>, J. Combin. Des. 30 (2022), 105-130.

%Y Cf. A350022, A350024.

%K nonn,more

%O 1,3

%A _Ian Wanless_, Dec 08 2021