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A133173
Species of ordered Latin bi-trades of size n.
0
0, 0, 0, 1, 0, 1, 1, 5, 4, 19, 26, 163, 445, 2302, 10798, 63690, 381883, 2550827, 17945643
OFFSET
1,8
LINKS
I. M. Wanless, A computer enumeration of small latin trades, Australas. J. Combin. 39, (2007) 247-258.
CROSSREFS
Cf. A007083.
Sequence in context: A108412 A205008 A133167 * A307675 A266707 A269695
KEYWORD
nonn,more
AUTHOR
Ian Wanless, Oct 11 2007
STATUS
approved