99 Bottles of Beer
408th
Abundant Numbers
237th
Arabic to Roman
303rd
Christmas Trees
32nd
Diamonds
38th
Divisors
351st
Emirp Numbers
136th
Evil Numbers
215th
Fibonacci
131st
Fizz Buzz
96th
Happy Numbers
199th
Leap Years
12th
11th
10th
Look and Say
182nd
Niven Numbers
251st
Odious Numbers
114th
Ordinal Numbers
159th
Pangram Grep
33rd
Pascal’s Triangle
106th
Pernicious Numbers
145th
Prime Numbers
389th
Quine
63rd
211th
109th
257th
52nd
151st
110th
Recamán
220th
Roman to Arabic
262nd
Seven Segment
60th
Tongue-twisters
78th
π
104th
φ
134th
√2
8th
11th
29th
12th
7th
30th
13th
33rd
1st
13th
7th
10th