12 Days of Christmas
816
24 Game
42
99 Bottles of Beer
551
Abundant Numbers
807
679
Abundant Numbers (Long)
837
807
Arabic to Roman
544
Arithmetic Numbers
756774
722
ASCII Table
349
Catalan’s Constant
125
508
Collatz
707
CSS Colors
518
Diamonds
69
Divisors
807
Emojify
300
Evil Numbers
636
Evil Numbers (Long)
624
Factorial Factorisation
96
225
128170
Fibonacci
914
Fizz Buzz
944864654
607466
700
Foo Fizz Buzz Bar
830
Happy Numbers
580
Leap Years
818
ln 2
96
51
193
Morse Encoder
132
Niven Numbers
751
Niven Numbers (Long)
753
Odious Numbers
650
Odious Numbers (Long)
651
Pernicious Numbers
444
Pernicious Numbers (Long)
508
Prime Numbers
745
Prime Numbers (Long)
768
Sudoku
325
Tongue-twisters
526
United States
191
γ
88
π
36
539
62
146
204254
τ
98
φ
95
101891005371
51
168247