12 Days of Christmas
466
24 Game
30
99 Bottles of Beer
419
Abundant Numbers
752
651
Abundant Numbers (Long)
819
715
Arabic to Roman
543
Arithmetic Numbers
768763
722
ASCII Table
344
Catalan’s Constant
124
226
Collatz
693
CSS Colors
278
Diamonds
69
Divisors
806
Emojify
310
Evil Numbers
649
Evil Numbers (Long)
624
Factorial Factorisation
96
224
128169
Fibonacci
894
Fizz Buzz
941861651
554455
695
Foo Fizz Buzz Bar
823
Happy Numbers
428
Leap Years
817
ln 2
96
50
192
Morse Encoder
229
Niven Numbers
746
Niven Numbers (Long)
761
Odious Numbers
663
Odious Numbers (Long)
651
Pernicious Numbers
435
Pernicious Numbers (Long)
499
Prime Numbers
731
Prime Numbers (Long)
754
Sudoku
465
Tongue-twisters
366
United States
172
γ
88
π
34
538
62
118
204253
τ
98
φ
95
98871005269
50
168246