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Number of nonisomorphic groupoids with no idempotents and a nontrivial symmetry.
1

%I #9 Mar 30 2012 17:37:00

%S 0,0,2,9,15376

%N Number of nonisomorphic groupoids with no idempotents and a nontrivial symmetry.

%H <a href="/index/Gre#groupoids">Index entries for sequences related to groupoids</a>

%Y Cf. A030250 - A030251.

%K nonn,more

%O 0,3

%A _Christian G. Bower_