99 Bottles of Beer
21st
Abundant Numbers
42nd
ASCII Table
19th
Catalan Numbers
1st1st
Christmas Trees
4th
Collatz
165th22nd
Diamonds
55th
Divisors
52nd
Emirp Numbers
42nd
Emirp Numbers (Long)
24th
Evil Numbers
263rd4th
Evil Numbers (Long)
35th
Fibonacci
10th
Fizz Buzz
1st
Foo Fizz Buzz Bar
21st
Fractions
1st
Happy Numbers
40th
Happy Numbers (Long)
30th
Intersection
25th
Kolakoski Sequence
21st
Leap Years
45th
Leyland Numbers
189th30th
Look and Say
28th
Lucky Numbers
24th
Niven Numbers
7th
Niven Numbers (Long)
1st
Odious Numbers
141st6th
Odious Numbers (Long)
36th
Pascal’s Triangle
39th
Pernicious Numbers
50th
Prime Numbers
185th71st
Prime Numbers (Long)
210th62nd
Recamán
32nd
Smith Numbers
21st
Van Eck Sequence
18th