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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.

A330039 Number of essential lattice congruences of the weak order on the symmetric group S_n.

Table of values

n	a(n)
1	1
2	1
3	4
4	47
5	3322
6	11396000

List of values

[1, 1, 4, 47, 3322, 11396000]

Started in 1964 by Neil J. A. Sloane | Maintained by The OEIS Foundation Inc.

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