A133164 - OEIS

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A133164

Number of species of separated Latin bi-trades of size n.

0

0, 0, 0, 1, 0, 1, 1, 3, 3, 9, 10, 47, 82, 324, 1053, 4686, 20337, 99833, 505865

(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

Sequence in context: A327798 A121074 A121072 * A022156 A125027 A360244

Adjacent sequences: A133161 A133162 A133163 * A133165 A133166 A133167

KEYWORD

nonn,more

AUTHOR

Ian Wanless, Oct 11 2007

STATUS

approved