12 Days of Christmas
99 Bottles of Beer
241
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
640
Fizz Buzz
Foo Fizz Buzz Bar
Fractions
Happy Numbers
Happy Numbers (Long)
Intersection
ISBN
Kolakoski Constant
44
118
Kolakoski Sequence
20
Leap Years
583
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
309
Prime Numbers (Long)
Quine
615
Recamán
Reverse Polish Notation
Seven Segment
Sierpiński Triangle
Time Distance
Tongue-twisters
603
United States
λ
183
545
π
37
102
130
74
110
106
72
150
67
165
69
31
48
110
147
25
94
53
339
47
42
154
147
118
τ
φ
√2
𝑒