12 Days of Christmas
99 Bottles of Beer
218
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
41
108
Kolakoski Sequence
18
Leap Years
574
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
472
Prime Numbers (Long)
Quine
615
Recamán
Reverse Polish Notation
Seven Segment
Sierpiński Triangle
Time Distance
Tongue-twisters
367
United States
λ
307
186
π
66
96
118
68
100
98
67
137
63
152
106
29
46
102
134
25
74
50
296
38
40
142
135
107
τ
φ
√2
𝑒