12 Days of Christmas
99 Bottles of Beer
229
Abundant Numbers
Abundant Numbers (Long)
ASCII Table
Catalan Numbers
Catalan’s Constant
Christmas Trees
Collatz
Divisors
Emirp Numbers
Emirp Numbers (Long)
Emojify
Evil Numbers
Evil Numbers (Long)
Fibonacci
630
Fizz Buzz
Foo Fizz Buzz Bar
Fractions
Happy Numbers
Happy Numbers (Long)
Intersection
ISBN
Kolakoski Constant
43
108
Kolakoski Sequence
19
Leap Years
565
Levenshtein Distance
Leyland Numbers
Morse Encoder
Niven Numbers
Niven Numbers (Long)
Odious Numbers
Odious Numbers (Long)
Ordinal Numbers
Pangram Grep
Pascal’s Triangle
Pernicious Numbers
Pernicious Numbers (Long)
Prime Numbers
292
Prime Numbers (Long)
Quine
615
Recamán
Reverse Polish Notation
Seven Segment
Sierpiński Triangle
Time Distance
Tongue-twisters
580
United States
λ
173
501
π
36
96
118
68
104
100
67
138
63
154
67
30
46
102
134
25
88
50
331
45
40
142
135
107
τ
φ
√2
𝑒