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A057996
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Number of self-converse loops (quasigroups with an identity element) of order n.
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8
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OFFSET
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0,5
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COMMENTS
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x*y is isomorphic to y*x.
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LINKS
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CROSSREFS
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KEYWORD
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nonn,more,nice
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AUTHOR
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EXTENSIONS
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a(8) from Juergen Buntrock (jubu(AT)eule.in-berlin.de), Nov 17 2003
Offset corrected and a(0) prepended by Jianing Song, Oct 26 2019
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STATUS
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approved
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