99 Bottles of Beer
17th
Abundant Numbers
35th
ASCII Table
18th
Catalan Numbers
1st1st
Christmas Trees
4th
Collatz
133rd19th
Diamonds
40th
Divisors
39th
Emirp Numbers
34th
Emirp Numbers (Long)
19th
Evil Numbers
232nd4th
Evil Numbers (Long)
32nd
Fibonacci
7th
Fizz Buzz
1st
Foo Fizz Buzz Bar
19th
Fractions
1st
Happy Numbers
34th
Happy Numbers (Long)
24th
Intersection
18th
Kolakoski Sequence
18th
Leap Years
37th
Leyland Numbers
164th25th
Look and Say
22nd
Lucky Numbers
16th
Niven Numbers
6th
Niven Numbers (Long)
1st
Odious Numbers
117th5th
Odious Numbers (Long)
31st
Pascal’s Triangle
32nd
Pernicious Numbers
39th
Prime Numbers
147th61st
Prime Numbers (Long)
178th50th
Recamán
29th
Smith Numbers
18th
Van Eck Sequence
15th