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A030245 Number of nonisomorphic groupoids with no symmetry. 4
1, 1, 6, 3237, 178932325 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,3
LINKS
CROSSREFS
a(n) = A079171(n, A027423(n)). Cf. A001329.
Sequence in context: A274083 A079183 A373236 * A247965 A172955 A283885
KEYWORD
nonn,more
AUTHOR
STATUS
approved

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Last modified June 14 07:34 EDT 2024. Contains 373393 sequences. (Running on oeis4.)