login
Number of nonisomorphic commutative groupoids with no symmetry.
2

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

%S 1,1,4,116,43428,254197133

%N Number of nonisomorphic commutative groupoids with no symmetry.

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

%Y a(n) = A079185(n, A027423(n)). Cf. A001425.

%K nonn,more

%O 0,3

%A _Christian G. Bower_