99 Bottles of Beer
15th
Abundant Numbers
38th
ASCII Table
18th
Catalan Numbers
1st1st
Christmas Trees
4th
Collatz
139th19th
Diamonds
42nd
Divisors
41st
Emirp Numbers
35th
Emirp Numbers (Long)
19th
Evil Numbers
240th4th
Evil Numbers (Long)
32nd
Fibonacci
7th
Fizz Buzz
1st
Foo Fizz Buzz Bar
19th
Fractions
1st
Happy Numbers
35th
Happy Numbers (Long)
24th
Intersection
20th
Kolakoski Sequence
18th
Leap Years
39th
Leyland Numbers
170th26th
Look and Say
23rd
Lucky Numbers
17th
Niven Numbers
6th
Niven Numbers (Long)
1st
Odious Numbers
122nd5th
Odious Numbers (Long)
32nd
Pascal’s Triangle
32nd
Pernicious Numbers
41st
Prime Numbers
153rd62nd
Prime Numbers (Long)
187th52nd
Recamán
29th
Smith Numbers
18th
Van Eck Sequence
16th