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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 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,8
LINKS
Table of n, a(n) for n=1..19.
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
Adjacent sequences: A133170 A133171 A133172 * A133174 A133175 A133176
KEYWORD
nonn,more
AUTHOR
Ian Wanless, Oct 11 2007
STATUS
approved

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Last modified May 16 10:52 EDT 2024. Contains 372552 sequences. (Running on oeis4.)