12 Days of Christmas
447
24 Game
36
99 Bottles of Beer
423
Abundant Numbers
751
650
Abundant Numbers (Long)
817
714
Arabic to Roman
532
Arithmetic Numbers
767
760
718
ASCII Table
346
Catalan’s Constant
124
225
Collatz
692
CSS Colors
277
Diamonds
68
Divisors
806
Emojify
313
Evil Numbers
647
Evil Numbers (Long)
622
Factorial Factorisation
96
222
127
170
Fibonacci
893
Fizz Buzz
940
929
657
553
461
715
Foo Fizz Buzz Bar
837
Happy Numbers
427
Leap Years
816
ln 2
95
50
191
Morse Encoder
228
Niven Numbers
745
Niven Numbers (Long)
759
Odious Numbers
662
Odious Numbers (Long)
648
Pernicious Numbers
434
Pernicious Numbers (Long)
497
Prime Numbers
730
Prime Numbers (Long)
752
Sudoku
470
Tongue-twisters
366
United States
171
γ
88
π
34
537
62
153
203
251
τ
98
φ
94
99
87
99
52
69
50
168
246