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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 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,12

LINKS

Table of n, a(n) for n=0..27.

Index entries for sequences related to quasigroups

EXAMPLE

1; 0,1; 0,1,0; 1,1,0,1; 1,5,1,0,0; ...

CROSSREFS

Row sums give A057992.

Sequence in context: A180977 A269129 A320606 * A204619 A228077 A204170

Adjacent sequences:  A058174 A058175 A058176 * A058178 A058179 A058180

KEYWORD

nonn,tabl,more

AUTHOR

Christian G. Bower, Nov 20 2000

STATUS

approved

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Last modified October 22 22:22 EDT 2020. Contains 337962 sequences. (Running on oeis4.)