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A133176
Isotopy classes of unordered Latin bi-trades of size n.
0
0, 0, 0, 1, 0, 3, 1, 13, 7, 59, 70, 553, 1277, 7661, 32395, 199205, 1149306, 7752187, 53913897
OFFSET
1,6
LINKS
I. M. Wanless, A computer enumeration of small latin trades, Australas. J. Combin. 39, (2007) 247-258.
CROSSREFS
Cf. A007083.
Sequence in context: A341725 A258239 A376863 * A089435 A152474 A088814
KEYWORD
nonn,more
AUTHOR
Ian Wanless, Oct 11 2007
STATUS
approved