12 Days of Christmas
99 Bottles of Beer
Abundant Numbers
Christmas Trees
Cubes
Diamonds
297
Divisors
Emirp Numbers
Evil Numbers
564
Fibonacci
889
Fizz Buzz
348
Happy Numbers
Happy Numbers (Long)
Kolakoski Constant
Kolakoski Sequence
833
Leap Years
Leyland Numbers
Morse Decoder
Niven Numbers
Odious Numbers
Pangram Grep
Pernicious Numbers
Prime Numbers
538
Quine
1,000
RecamΓ‘n
Rule 110
Smith Numbers
Star Wars Opening Crawl
Sudoku (Fill-in)
Vampire Numbers
Van Eck Sequence
Ξ»
Ο
3750102710510626748666910615068262716359311101472594533784642154223147118161
Ο
Ο
β2
π