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Number Theory
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Demonstrations 41  60 of 573
Permutations, Lehmer Code, and Lexicographic Index
Fibonacci Time
The Lucas Magic Square
Complex Quadratic Residues
Visible Lattice Points and Approximations to Pi
PowerMod Is Eventually Periodic
Visualizing the Collatz Conjecture and Some Variants
Benford's Law and Data Spread
The Riemann Zeta Function in Four Dimensions
Iterating the Collatz Map on Real and Complex Numbers
Abacus
The Cantor Sequence with Bits
Solutions of Fermat's Equation
Complex Branching of Inverse Monomial Mappings from Lissajous Figures
Frobenius Equation in Two Variables
The Music of Mathematical Constants
Solving Decanting Problems by Graph Theory
27 Coins Balance Puzzle
Prüfer pGroup
Set Partitions Match Restricted Growth Functions
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