12 Days of Christmas
829
24 Game
49
99 Bottles of Beer
581
Abundant Numbers
836
689
Abundant Numbers (Long)
877
827
Arabic to Roman
574
Arithmetic Numbers
833
817
798
ASCII Table
364
Catalan’s Constant
134
578
Collatz
730
CSS Colors
583
Diamonds
72
Divisors
833
Emojify
316
Evil Numbers
689
Evil Numbers (Long)
671
Factorial Factorisation
103
256
141
192
Fibonacci
939
Fizz Buzz
960
952
679
611
485
758
Foo Fizz Buzz Bar
880
Happy Numbers
610
Leap Years
844
ln 2
105
52
219
Morse Encoder
139
Niven Numbers
778
Niven Numbers (Long)
808
Odious Numbers
708
Odious Numbers (Long)
703
Pernicious Numbers
466
Pernicious Numbers (Long)
538
Prime Numbers
776
Prime Numbers (Long)
809
Sudoku
348
Tongue-twisters
536
United States
213
γ
94
π
37
568
66
174
223
281
τ
106
φ
103
111
96
111
56
78
52
188
278