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A058175
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Triangle: Number of quasigroups of order n with k idempotents.
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0
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1, 0, 1, 0, 1, 0, 1, 3, 0, 1, 9, 18, 6, 1, 1, 420, 638, 264, 77, 8, 4, 367590, 469675, 227168, 57788, 7712, 580, 18
(list;
table;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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0,8
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LINKS
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Table of n, a(n) for n=0..27.
Index entries for sequences related to quasigroups
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EXAMPLE
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1; 0,1; 0,1,0; 1,3,0,1; 9,18,6,1,1; ...
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CROSSREFS
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Row sums give A057991.
Sequence in context: A222060 A256549 A211608 * A353010 A112906 A137375
Adjacent sequences: A058172 A058173 A058174 * A058176 A058177 A058178
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KEYWORD
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nonn,tabl,more
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AUTHOR
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Christian G. Bower, Nov 20 2000
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STATUS
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approved
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