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A058177
Triangle: Number of commutative quasigroups of order n with k idempotents.
0
1, 0, 1, 0, 1, 0, 1, 1, 0, 1, 1, 5, 1, 0, 0, 3, 5, 1, 1, 0, 1, 148, 213, 96, 34, 0, 0, 0
OFFSET
0,12
EXAMPLE
1; 0,1; 0,1,0; 1,1,0,1; 1,5,1,0,0; ...
CROSSREFS
Row sums give A057992.
Sequence in context: A269129 A320606 A343016 * A345373 A204619 A228077
KEYWORD
nonn,tabl,more
AUTHOR
Christian G. Bower, Nov 20 2000
STATUS
approved