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A350023 Number of diagonal semisymmetric Latin squares of order n. 2
1, 0, 3, 2, 30, 0, 3000, 20160, 19571328, 8136806400, 13826847640320, 113788019281305600 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,3
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
Sequence in context: A046272 A054676 A181994 * A353123 A154332 A252595
KEYWORD
nonn,more
AUTHOR
Ian Wanless, Dec 08 2021
STATUS
approved

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Last modified April 23 02:10 EDT 2024. Contains 371906 sequences. (Running on oeis4.)