12 Days of Christmas
140
99 Bottles of Beer
223
Abundant Numbers
181
Arrows
213
ASCII Table
170
Catalan Numbers
127
Christmas Trees
81
Collatz
120
Diamonds
95
Divisors
49
Emirp Numbers
336
Emojify
190
Evil Numbers
182
Fibonacci
74
Fizz Buzz
107
Foo Fizz Buzz Bar
137
Fractions
185
Happy Numbers
357
Happy Numbers (Long)
197
Hexdump
149
Leap Years
107
Leyland Numbers
199
Look and Say
303
Lucky Tickets
165
Niven Numbers
175
Number Spiral
409
Odious Numbers
174
Ordinal Numbers
152
Pangram Grep
122
Pascal’s Triangle
118
Pernicious Numbers
185
Prime Numbers
181
Prime Numbers (Long)
72
Recamán
170
Rule 110
209
Sierpiński Triangle
178
Smith Numbers
485
Tongue-twisters
565
United States
178
Vampire Numbers
376
Van Eck Sequence
369
Zodiac Signs
235
λ
497
π
84
τ
82
φ
123
√2
203
𝑒
203