12 Days of Christmas
99 Bottles of Beer
Abundant Numbers
Christmas Trees
Cubes
Diamonds
267
Divisors
Emirp Numbers
Evil Numbers
510
Fibonacci
875
Fizz Buzz
337
Happy Numbers
Happy Numbers (Long)
Kolakoski Constant
Kolakoski Sequence
802
Leap Years
Leyland Numbers
Morse Decoder
Niven Numbers
Odious Numbers
Pangram Grep
Pernicious Numbers
Prime Numbers
509
Quine
1,000
Recamán
Rule 110
Smith Numbers
Star Wars Opening Crawl
Sudoku (Fill-in)
Vampire Numbers
Van Eck Sequence
λ
π
34
96
6
100
98
235
62
64
96
137
64
23
25
150
58
29
46
102
134
25
74
50
330
37
40
142
203
135
107
143
τ
φ
√2
𝑒