A030258 - OEIS

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A030258

Number of nonisomorphic commutative idempotent groupoids with no symmetry.

1, 1, 1, 3, 164, 80461

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

OFFSET

0,4

LINKS

Table of n, a(n) for n=0..5.

Index entries for sequences related to groupoids

CROSSREFS

Sequence in context: A212845 A212806 A368600 * A154737 A285488 A112896

Adjacent sequences: A030255 A030256 A030257 * A030259 A030260 A030261

KEYWORD

nonn,more

AUTHOR

Christian G. Bower

STATUS

approved