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Combinatorics
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Demonstrations 1  20 of 252
Realization of Heawood's Map on a Toroidal Polyhedron
Updated this week
Biggest Little Polyhedron
Consecutive Smooth Numbers
The FourRunner Problem
Bishop Edge Coloring
The Colorit Puzzle
Concurrent Diagonals in a 30Gon
Diagonals of Polyhedra
Chromatic Spindles
Seven Touching Cylinders Puzzle
Constrained Optimal Routes in 3D Space
Ways to Lace Your Shoes
The Routing Problem
Wheel Graphs with Integer Edges
Isomorphic Types on Graphs: 1Neighborhood Random Grid Graphs
Isomorphic Types on Graphs: 1Neighborhood Random Graphs
Isomorphic Types on Graphs: 1Neighborhood Random Tree Graphs
Set Partitions Match Restricted Growth Functions
Exchange Networks
Infinite Magic Elliptic Curves
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