99 Bottles of Beer
21st
Abundant Numbers
39th
ASCII Table
19th
Catalan Numbers
1st1st
Christmas Trees
4th
Collatz
155th20th
Diamonds
49th
Divisors
46th
Emirp Numbers
38th
Emirp Numbers (Long)
23rd
Evil Numbers
252nd4th
Evil Numbers (Long)
33rd
Fibonacci
9th
Fizz Buzz
1st
Foo Fizz Buzz Bar
21st
Fractions
1st
Happy Numbers
38th
Happy Numbers (Long)
25th
Intersection
22nd
Kolakoski Sequence
20th
Leap Years
41st
Leyland Numbers
180th29th
Look and Say
25th
Lucky Numbers
19th
Niven Numbers
7th
Niven Numbers (Long)
1st
Odious Numbers
132nd5th
Odious Numbers (Long)
34th
Pascal’s Triangle
35th
Pernicious Numbers
45th
Prime Numbers
176th66th
Prime Numbers (Long)
202nd58th
Recamán
30th
Smith Numbers
20th
Van Eck Sequence
17th