99 Bottles of Beer
49th
Abundant Numbers
31st26th
Abundant Numbers (Long)
72nd
Arabic to Roman
48th
Arithmetic Numbers
55th
Christmas Trees
154th
Collatz
247th
Day of Week
170th
Divisors
91st
Emirp Numbers
48th
Emirp Numbers (Long)
21st
Evil Numbers
133rd
Evil Numbers (Long)
80th
Fibonacci
378th
Fizz Buzz
296th1st
Happy Numbers
205th
Happy Numbers (Long)
107th
Leap Years
126th
Lucky Tickets
44th
Niven Numbers
1st
Niven Numbers (Long)
83rd
Odious Numbers
115th
Odious Numbers (Long)
66th
Ordinal Numbers
114th
Pangram Grep
168th
Pascal’s Triangle
47th
Pernicious Numbers
81st
Pernicious Numbers (Long)
58th
Prime Numbers
158th
Prime Numbers (Long)
98th
Quine
51st
Recamán
38th
Reverse Polish Notation
96th
Smith Numbers
32nd