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A030271
Number of nonisomorphic groupoids with 1 idempotent and no symmetry.
5
1, 4, 1431, 75491208
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OFFSET
1,2
LINKS
Table of n, a(n) for n=1..4.
Index entries for sequences related to groupoids
CROSSREFS
Sequence in context:
A278844
A036107
A201390
*
A301576
A160088
A094546
Adjacent sequences:
A030268
A030269
A030270
*
A030272
A030273
A030274
KEYWORD
nonn
,
more
AUTHOR
Christian G. Bower
STATUS
approved
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Last modified November 29 06:17 EST 2023. Contains 367422 sequences. (Running on oeis4.)