12 Days of Christmas
229th
Abundant Numbers
385th
Arabic to Roman
86th
Catalan Numbers
182nd
Christmas Trees
107th
Diamonds
139th
Divisors
405th
Emirp Numbers
281st
Evil Numbers
202nd1,091st
Fibonacci
197th
Fizz Buzz
66th
Foo Fizz Buzz Bar
1st
ISBN
132nd
Leap Years
525th
Niven Numbers
499th
Odious Numbers
152nd
Ordinal Numbers
234th
Pascal’s Triangle
220th
Prime Numbers
780th
Prime Numbers (Long)
419th
Quine
82nd
Rock-paper-scissors-Spock-lizard
65th
Seven Segment
58th
Van Eck Sequence
134th