%I #4 Jul 21 2017 16:04:40
%S 1,1,21,1565243,435509352937
%N Number of isomorphism classes of 4-dimensional latin hypercubes (i.e., 4-ary quasigroups) of order n.
%D B. D. McKay and I. M. Wanless, A census of small latin hypercubes, SIAM J. Discrete Math. 22, (2008) 719-736.
%K nonn
%O 1,3
%A _Ian Wanless_, May 01 2008