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Demonstrations 41  60 of 123
Ways of Stepping One, Two, or Three Stairs Up a Stairway
Polyform Explorer
Stacks of Reflecting Plates
Discrete Number Theory Plots
Resizable Number Theory Tables
Number Theory Tables
Proof by Induction
Sunflower Seed Arrangements
The Four Numbers Game
What Squares Are in the Square Grid?
Noncrossing Partitions
Ulam Numbers
Functions That Enumerate Pairs
Collatz Sequence Computed by a Turing Machine
SelfDescriptive Strings
TwelveTone EqualTempered Scales
Collatz Sequence Computed by a Tag System
Uniform Convergence of a Sequence of Functions
Two Types of Hexagonal Polyominoes Counted by Area and Number of Columns
Stirling Numbers of the Second Kind and Nonattacking Rooks
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