12 Days of Christmas
99 Bottles of Beer
Abundant Numbers
Abundant Numbers (Long)
Arithmetic Numbers
Arrows
Ascending Primes
Catalan Numbers
Christmas Trees
Collatz
Day of Week
Divisors
Emirp Numbers
Emirp Numbers (Long)
Emojify
Evil Numbers
Evil Numbers (Long)
Fibonacci
12
196
171
96
103
222
38
559
909
825
217
212
730
130
713
765
261
184
175
82
68
605
77
159
58
520
849
924
155
58
75
841
599
276
232
79
684
443
209
807
521
775
Fizz Buzz
Foo Fizz Buzz Bar
Fractions
Game of Life
Happy Numbers
Happy Numbers (Long)
ISBN
Leap Years
Leyland Numbers
ln 2
Lucky Numbers
Musical Chords
Niven Numbers
Niven Numbers (Long)
Odious Numbers
Odious Numbers (Long)
Pernicious Numbers
Pernicious Numbers (Long)
Prime Numbers
Prime Numbers (Long)
Quine
United States
Vampire Numbers
Van Eck Sequence
γ
λ
π
τ
φ
√2
𝑒