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A030271 Number of nonisomorphic groupoids with 1 idempotent and no symmetry. +0
6
1, 4, 1431, 75491208 (list; graph; listen)
OFFSET

1,2
LINKS

Index entries for sequences related to groupoids

CROSSREFS

Sequence in context: A079711 A167071 A036107 this_sequence A160088 A094546 A030253

Adjacent sequences: A030268 A030269 A030270 this_sequence A030272 A030273 A030274

KEYWORD

nonn,more

AUTHOR

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

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

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