99 Bottles of Beer
474th
Abundant Numbers
277th
Arabic to Roman
363rd
Christmas Trees
40th
Diamonds
46th
Divisors
394th
Emirp Numbers
151st
Evil Numbers
242nd
Fibonacci
157th
Fizz Buzz
115th
Happy Numbers
229th
Leap Years
12th
12th
12th
Look and Say
217th
Niven Numbers
287th
Odious Numbers
135th
Ordinal Numbers
186th
Pangram Grep
48th
Pascal’s Triangle
129th
Pernicious Numbers
172nd
Prime Numbers
441st
Quine
70th245th
118th
280th
58th167th124th
Recamán
253rd
Roman to Arabic
305th
Seven Segment
74th
Tongue-twisters
91st
π
121st
φ
148th
√2
9th
17th12th
33rd
7th33rd17th39th1st
13th7th13th