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Search: id:A057991
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| A057991 |
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Number of quasigroups of order n. |
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+0
10
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| 1, 1, 1, 5, 35, 1411, 1130531, 12198455835, 2697818331680661, 15224734061438247321497, 2750892211809150446995735533513, 19464657391668924966791023043937578299025
(list; graph; listen)
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OFFSET
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0,4
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REFERENCES
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A. Hulpke, P. Kaski and P. R. J. Ostergard, The number of Latin squares of order 11, Preprint, 2009.
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LINKS
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Index entries for sequences related to quasigroups
B. D. McKay, A. Meynert and W. Myrvold, Small Latin Squares, Quasigroups and Loops, J. Combin. Designs, to appear (2005).
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CROSSREFS
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Cf. A002860, A057992-A057994, A057771, A057996.
Sequence in context: A053420 A001802 A122590 this_sequence A099137 A000871 A035416
Adjacent sequences: A057988 A057989 A057990 this_sequence A057992 A057993 A057994
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KEYWORD
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nonn,more
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AUTHOR
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Christian G. Bower (bowerc(AT)usa.net), Nov 01 2000
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EXTENSIONS
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More terms (from the McKay-Meynert-Myrvold article) from Richard Bean (rwb(AT)eskimo.com), Feb 17 2004
There are 19464657391668924966791023043937578299025 isomorphism classes of quasigroups of order 11. - Petteri Kaski (petteri.kaski(AT)cs.helsinki.fi), Sep 18 2009
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