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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A133172 Species of unordered Latin bi-trades of size n.

Original entry on oeis.org

0, 0, 0, 1, 0, 1, 1, 5, 3, 17, 19, 131, 262, 1448, 5743, 34514, 194239, 1302209, 9011123
Offset: 1

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Author

Ian Wanless, Oct 11 2007

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Crossrefs

Cf. A007083.

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