A030248 Number of nonisomorphic idempotent groupoids with no symmetry.

1, 1, 1, 108, 697501

Offset

0,4

Links

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

Index entries for sequences related to groupoids

Crossrefs

Sequence in context: A270255 A269269 A230474 * A394609 A033535 A077728

Adjacent sequences: A030245 A030246 A030247 * A030249 A030250 A030251

Keyword

nonn,more

Author

Christian G. Bower

Status

approved