99 Bottles of Beer
17th
Abundant Numbers
35th
ASCII Table
18th
Catalan Numbers
1st1st
Christmas Trees
3rd
Collatz
123rd19th
Diamonds
38th
Divisors
39th
Emirp Numbers
34th
Emirp Numbers (Long)
18th
Evil Numbers
228th3rd
Evil Numbers (Long)
29th
Fibonacci
7th
Fizz Buzz
1st
Foo Fizz Buzz Bar
17th
Fractions
1st
Happy Numbers
33rd
Happy Numbers (Long)
24th
Intersection
18th
Kolakoski Sequence
18th
Leap Years
37th
Leyland Numbers
162nd24th
Look and Say
22nd
Lucky Numbers
15th
Niven Numbers
6th
Niven Numbers (Long)
1st
Odious Numbers
112th5th
Odious Numbers (Long)
29th
Pascal’s Triangle
32nd
Pernicious Numbers
38th
Prime Numbers
144th59th
Prime Numbers (Long)
173rd46th
Recamán
28th
Smith Numbers
17th
Van Eck Sequence
14th