Abundant Numbers
Abundant Numbers (Long)
Catalan Numbers
13th
Christmas Trees
121st
Divisors
1st
Emirp Numbers
1,722nd5th
Evil Numbers
165th
Fibonacci
Happy Numbers
Leap Years
3,078th
Niven Numbers
Niven Numbers (Long)
Odious Numbers
Pernicious Numbers
Prime Numbers
1st
Prime Numbers (Long)
1st
Quine
251st