cp's OEIS Frontend

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.

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A091687 Number of lattice congruences of the weak order on the Coxeter group S_n (the symmetric group).

Original entry on oeis.org

1, 2, 7, 60, 3444, 11402948, 129187106461769
Offset: 1

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Author

Nathan Reading (nreading(AT)umich.edu), Jan 28 2004

Keywords

Comments

To a very good approximation for n=4,5,6 we have a(n+1) ~ (a(n))^2.

Links

Crossrefs

Cf. A091688, A330039.
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Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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