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12 Days of Christmas
24 Game
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Arabic to Roman
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brainfuck
Card Number Validation
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Christmas Trees
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Day of Week
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Emirp Numbers (Long)
Emojify
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Evil Numbers (Long)
Factorial Factorisation
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Fibonacci
Fizz Buzz
Foo Fizz Buzz Bar
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Fractions
Game of Life
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Happy Numbers (Long)
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ISBN
Jacobi Symbol
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Leap Years
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ln 2
Look and Say
Lucky Numbers
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Mahjong
Maze
Medal Tally
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Morse Encoder
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N Queens
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Niven Numbers (Long)
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Odious Numbers (Long)
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PalindromemordnilaP
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Pernicious Numbers (Long)
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Prime Numbers (Long)
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Quine
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Reversi
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Rule 110
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SI Units
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Spelling Numbers
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Sudoku
Sudoku (Fill-in)
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Tic-tac-toe
Time Distance
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United States
Vampire Numbers
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γ
λ
π
τ
φ
√2
𝑒
Experimental Hole
Apéry’s Constant
Calendar
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p-adic Expansion
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