Abundant Numbers
20th
Abundant Numbers (Long)
20th
Catalan Numbers
40th
Christmas Trees
53rd
Divisors
41st
Emirp Numbers
80th
Emirp Numbers (Long)
39th
Evil Numbers
86th
Evil Numbers (Long)
47th
Farey Sequence
30th
Fibonacci
58th
Fizz Buzz
161st
Foo Fizz Buzz Bar
37th
Leap Years
66th
Niven Numbers
42nd
Niven Numbers (Long)
46th
Odious Numbers
72nd
Odious Numbers (Long)
45th
Ordinal Numbers
57th
Pascal’s Triangle
60th
Pernicious Numbers
87th
Prime Numbers
114th
Prime Numbers (Long)
64th
Recamán
31st