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Demonstrations 21  40 of 243
Polygons on n Vertices
Paths through a Grid
Pascallike Triangles Made from a Game
Simple 2Column Polyominoes on the Hexagonal Lattice
Random Closed Meanders
Ways of Stepping One, Two, or Three Stairs Up a Stairway
Shortening the 29th Olympic Torch Tour
Polyform Explorer
Pascallike Triangles Mod k
Lattice Path Interpretations
No Repeated Distances
Grid Packing at an Angle
A Canadian Lottery Wheel
Set Partition Refinement Lattice
Equilateral Triangles in 3D with Integer Coordinates
Ant Colony Optimization (ACO)
The Number of Fixed Points in a Random Permutation
Map Maker
Euler Zigzag Numbers
The Satisfiability Threshold
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