12 Days of Christmas
142nd
99 Bottles of Beer
104th
Abundant Numbers
137th
Arabic to Roman
53rd
Arrows
44th
Catalan Numbers
28th
Collatz
96th
CSS Colors
40th
Diamonds
52nd
Divisors
98th
Emirp Numbers
61st
Evil Numbers
41st
Evil Numbers (Long)
26th
Fibonacci
281st
Fizz Buzz
151st
Foo Fizz Buzz Bar
86th
Fractions
57th
Happy Numbers
45th
Leap Years
107th
Odious Numbers
35th
Odious Numbers (Long)
25th