%I #13 Sep 02 2023 18:32:00
%S 1,1,2,1,3,1,4,1,2,2,4,1,6,1,3,6,5,1,7,1,3,1,22,1,16,11,378,8
%N Number of primitive association schemes of order n.
%H A. Hanaki and I. Miyamoto, <a href="http://math.shinshu-u.ac.jp/~hanaki/as/">Classification of association schemes with small vertices</a>.
%H Akihide Hanaki and Izumi Miyamoto, <a href="http://doi.org/10.2206/kyushujm.54.81">Classification of primitive association schemes of order up to 22</a>, Kyushu J. Math., 54 (2000), 81-86.
%H Y. Suga, <a href="http://www.math.kyushu-u.ac.jp/stat/Suga/ass/class.htm">Association schemes with up to 15 vertices</a>. [Broken link]
%Y Cf. A057495, A057498, A057560.
%K nonn,nice,more
%O 1,3
%A _N. J. A. Sloane_, Oct 01 2000