12 Days of Christmas
99 Bottles of Beer
Abundant Numbers
Christmas Trees
Cubes
Diamonds
297
Divisors
Emirp Numbers
Evil Numbers
538
Fibonacci
889
Fizz Buzz
348
Happy Numbers
Happy Numbers (Long)
Kolakoski Constant
Kolakoski Sequence
826
Leap Years
Leyland Numbers
Morse Decoder
Niven Numbers
Odious Numbers
Pangram Grep
Pernicious Numbers
Prime Numbers
538
Quine
1,000
Recamán
Rule 110
Smith Numbers
Star Wars Opening Crawl
Sudoku (Fill-in)
Vampire Numbers
Van Eck Sequence
λ
π
35
102
7
105
104
267
66
69
106
149
68
25
25
161
59
30
48
110
147
25
78
53
337
39
42
154
223
147
118
159
τ
φ
√2
𝑒