Abundant Numbers
114th
Abundant Numbers (Long)
75th
Christmas Trees
117th
Collatz
119th
Divisors
242nd
Emirp Numbers
96th
Evil Numbers
124th
Evil Numbers (Long)
67th
Fibonacci
250th
Fizz Buzz
1,134th
Foo Fizz Buzz Bar
33rd
Fractions
76th
Happy Numbers
95th
Happy Numbers (Long)
53rd
Leap Years
152nd
Look and Say
40th
Niven Numbers
121st
Niven Numbers (Long)
61st
Odious Numbers
196th
Ordinal Numbers
106th
Pascal’s Triangle
152nd
Prime Numbers
229th
Recamán
98th