99 Bottles of Beer
21st
Abundant Numbers
40th
ASCII Table
19th
Catalan Numbers
1st1st
Christmas Trees
4th
Collatz
162nd21st
Diamonds
54th
Divisors
49th
Emirp Numbers
40th
Emirp Numbers (Long)
24th
Evil Numbers
258th4th
Evil Numbers (Long)
34th
Fibonacci
10th
Fizz Buzz
1st
Foo Fizz Buzz Bar
21st
Fractions
1st
Happy Numbers
39th
Happy Numbers (Long)
27th
Intersection
25th
Kolakoski Sequence
20th
Leap Years
44th
Leyland Numbers
185th30th
Look and Say
27th
Lucky Numbers
24th
Niven Numbers
7th
Niven Numbers (Long)
1st
Odious Numbers
138th5th
Odious Numbers (Long)
35th
Pascal’s Triangle
36th
Pernicious Numbers
46th
Prime Numbers
182nd68th
Prime Numbers (Long)
206th59th
Recamán
31st
Smith Numbers
21st
Van Eck Sequence
17th