Abundant Numbers
119th
Abundant Numbers (Long)
80th
Christmas Trees
117th
Collatz
130th
Divisors
248th
Emirp Numbers
89th
Evil Numbers
126th
Evil Numbers (Long)
70th
Fibonacci
263rd
Fizz Buzz
1,156th
Foo Fizz Buzz Bar
34th
Fractions
83rd
Happy Numbers
94th
Happy Numbers (Long)
58th
Leap Years
163rd
Look and Say
42nd
Niven Numbers
126th
Niven Numbers (Long)
64th
Odious Numbers
201st
Ordinal Numbers
112th
Pascal’s Triangle
158th
Prime Numbers
240th
Recamán
102nd