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A138080
Number of isomorphism classes of 4-dimensional latin hypercubes (i.e., 4-ary quasigroups) of order n.
0
1, 1, 21, 1565243, 435509352937
OFFSET
1,3
REFERENCES
B. D. McKay and I. M. Wanless, A census of small latin hypercubes, SIAM J. Discrete Math. 22, (2008) 719-736.
CROSSREFS
Sequence in context: A189252 A173518 A033636 * A013814 A013898 A180727
KEYWORD
nonn
AUTHOR
Ian Wanless, May 01 2008
STATUS
approved