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A030251 Number of nonisomorphic groupoids with no idempotents and no symmetry. 3
1, 0, 1, 969, 56615456 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

LINKS

Table of n, a(n) for n=0..4.

Index entries for sequences related to groupoids

CROSSREFS

Sequence in context: A035759 A107555 A175991 * A252196 A345538 A345790

Adjacent sequences:  A030248 A030249 A030250 * A030252 A030253 A030254

KEYWORD

nonn,more

AUTHOR

Christian G. Bower

STATUS

approved

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Last modified January 22 12:55 EST 2022. Contains 350481 sequences. (Running on oeis4.)