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A030259 Number of nonisomorphic commutative idempotent groupoids with a nontrivial symmetry. 1
0, 0, 0, 4, 38, 1894 (list; graph; refs; listen; history; internal format)
OFFSET

0,4

LINKS

Index entries for sequences related to groupoids

CROSSREFS

A030257 - A030258.

Sequence in context: A093377 A178017 A131591 * A018860 A016484 A106127

Adjacent sequences:  A030256 A030257 A030258 * A030260 A030261 A030262

KEYWORD

nonn,more

AUTHOR

Christian G. Bower (bowerc(AT)usa.net)

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Last modified February 17 07:30 EST 2012. Contains 205998 sequences.