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Science: Math: Combinatorics (447)
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Combinatorial Game Theory (11)
Design Theory (37)
Graph Theory (117)

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Computers: Algorithms (327)
Science: Math: Algebra: Group Theory (31)
Science: Math: Probability (106)

Web Sites

A New Proof of the Four Colour Theorem -
By Ashay Dharwadker. Includes profile, research papers for other algorithms, lecture notes, and student database.

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A Survey of Venn Diagrams -
Various facts and figures about Venn diagrams by Frank Ruskey.

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Algebraic Combinatorics via Finite Group Actions -
A hypertext by A. Betten, H. Fripertinger and A. Kerber.

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ArXiv Front: CO Combinatorics -
Combinatorics section of the Front for the Mathematics ArXiv.

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Catalogue of Lattices -
A catalogue of different types with applications to packing spheres by Neil Sloane and Gabriele Nebe.

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CATS: Combinatorial Algorithms Test Sets -
Searchable index of problems, links and methodology maintained by the Association for Computing Machinery.

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Combinatorial Catalogues - http://www.csse.uwa.edu.au/~gordon/data.html
Combinatorial objects such as graphs, designs and geometries collected by Gordon Royle.

Status Code: 302 - Location: http://people.csse.uwa.edu.au/gordon/data.html
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Combinatorial Data - http://www.csse.uwa.edu.au/~gordon/data.html
Brendan McKay's collection of miscellaneous tables in graph6 or sparse6 format.

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Combinatorics - http://www.csse.uwa.edu.au/~gordon/data.html
Subfields in the AMS MSC 2000 classification 05.

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Combinatorics - http://www.csse.uwa.edu.au/~gordon/data.html
MathWorld article with basic definitions and links.

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Counting Young Tableaux - http://www.csse.uwa.edu.au/~gordon/data.html
An article on counting Young tableaux of bounded height by François Bergeron and Francis Gascon.

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Encyclopedia of Combinatorial Structures - http://www.csse.uwa.edu.au/~gordon/data.html
Searchable database of structures with specifications and counts.

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Enumeration of Polyhedra - http://www.csse.uwa.edu.au/~gordon/data.html
Enumeration of polyhedra with upto 9 faces by Steven Dutch.

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Enumeration of the Binary Trees - http://www.csse.uwa.edu.au/~gordon/data.html
A note on Catalan numbers by Ivan Galkin.

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Extremal Combinatorics - http://www.csse.uwa.edu.au/~gordon/data.html
With Applications in Computer Science by Stasys Jukna.

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G-Systems - http://www.csse.uwa.edu.au/~gordon/data.html
Theory of chord structures to create music through algorithms by Vladimir Ladma.

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Generating Functions - http://www.csse.uwa.edu.au/~gordon/data.html
Introduction to generating functions with interactive java applets by Alexander Bogomolny.

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Lectures in Combinatorics - http://www.csse.uwa.edu.au/~gordon/data.html
An introduction to partially ordered sets, Dilworth's theorem, lattices and combinatorial geometries.

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On-line Dictionary of Combinatorics - http://www.csse.uwa.edu.au/~gordon/data.html
An expanding web text by Joe Fields.

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Polya's Enumeration Theorem - http://www.csse.uwa.edu.au/~gordon/data.html
An article on generating functions and Polya's theory of counting by Karl Dahlke.

Status Code: 200
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Series Expansions - http://www.csse.uwa.edu.au/~gordon/data.html
Iwan Jensen counts polyominoes (aka lattice animals), paths, and various related quantities.

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Squared Squares - http://www.csse.uwa.edu.au/~gordon/data.html
Tilings of squares and rectangles, the classical problem and variations.

Status Code: 200
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The Combinatorial Object Server - http://www.csse.uwa.edu.au/~gordon/data.html
Select a type together with specific parameter values and COS will return a list of all such combinatorial objects.

Status Code: 200
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The Combinatorics Net - http://www.combinatorics.net/
Maintained by Bill Chen.

Status Code: 200 - Location: http://www.combinatorics.net/index.html
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The Cutting Sticks Problem - http://www.combinatorics.net/
An unsolved combinatorial problem by Frans Faase.

Status Code: 200
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The Math Forum Math Library - Combinatorics - http://www.combinatorics.net/
Comprehensive catalog of websites relating to Combinatorics.

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The Seventeen Wallpaper Groups - http://www.combinatorics.net/
Examples in traditional Japanese patterns.

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Topics in Mathematics - Combinatorics - http://www.combinatorics.net/
In the Mathematics Archive at University of Tennessee, Knoxville.

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