12 Days of Christmas
70
99 Bottles of Beer
201
Abundant Numbers
173
Arrows
175
ASCII Table
182
Catalan Numbers
117
Christmas Trees
86
Collatz
108
Diamonds
108
Divisors
44
Emirp Numbers
229
Emojify
142
Evil Numbers
169
Fibonacci
86
Fizz Buzz
103
Foo Fizz Buzz Bar
122
Fractions
150
Happy Numbers
233
Happy Numbers (Long)
170
Hexdump
127
Leap Years
97
Leyland Numbers
289
Look and Say
555
Lucky Tickets
136
Niven Numbers
188
Number Spiral
251
Odious Numbers
163
Ordinal Numbers
134
Pangram Grep
100
Pascal’s Triangle
104
Pernicious Numbers
164
Prime Numbers
186
Prime Numbers (Long)
61
Recamán
109
Rule 110
176
Sierpiński Triangle
154
Smith Numbers
167
Tongue-twisters
343
United States
123
Vampire Numbers
332
Van Eck Sequence
302
Zodiac Signs
191
λ
670
π
156
τ
146
φ
106
√2
169
𝑒
175