Revisions to Fundamental Examples

replaced http://mathoverflow.net/ with https://mathoverflow.net/

edited Apr 13, 2017 at 12:58

The Catalan numbers are definitely a fundamental example in combinatorics.

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edited Jun 3, 2010 at 21:25

The Catalan numbersCatalan numbers are definitely a fundamental example in combinatorics.

Answered by Qiaochu Yuan

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answered Nov 12, 2009 at 17:47

The Catalan numbers are definitely a fundamental example in combinatorics.

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