%I #12 Feb 15 2015 10:42:18
%S 1,4,1485,75503872,1017252851596875,5757133327963849592814528,
%T 20215881652044379995902152075055222830,
%U 61135717735233219050448568789931104340315383312314368
%N Number of nonisomorphic groupoids with 1 idempotent.
%H <a href="/index/Gre#groupoids">Index entries for sequences related to groupoids</a>
%K nonn
%O 1,2
%A _Christian G. Bower_, Feb 15 1998 and May 15 1998