A222406 - OEIS

%I #18 Jan 14 2024 06:56:36

%S 1,2,3,5,10,14,24,38,65

%N Number of isomorphism types of automorphism groups of semigroups of order n.

%H A. Distler and T. Kelsey, <a href="http://arxiv.org/abs/1301.6023">The semigroups of order 9 and their automorphism groups</a>, arXiv preprint arXiv:1301.6023 [math.CO], 2013.

%Y Cf. A174511.

%K nonn,more,hard,nice

%O 1,2

%A _N. J. A. Sloane_, Feb 19 2013