Abundant Numbers
884th
Abundant Numbers (Long)
331st
Arithmetic Numbers
459th
Catalan Numbers
837th
Collatz
257th
Divisors
4,205th2,064th
Evil Numbers
1,671st
234th
Evil Numbers (Long)
1,710th
Fibonacci
2,831st
Fizz Buzz
2,237th3,428th
Foo Fizz Buzz Bar
1,376th
Happy Numbers
1,340th
Happy Numbers (Long)
953rd
Leap Years
1,781st
Leyland Numbers
964th
Niven Numbers
2,401st
Niven Numbers (Long)
1,138th
Odious Numbers
2,438th1,178th1,757th
Odious Numbers (Long)
1,565th
Pascal’s Triangle
1,523rd1,707th
Pernicious Numbers
1,958th
Prime Numbers
1,964th
Prime Numbers (Long)
1,439th
Recamán
704th
Smith Numbers
728th
Sudoku
339th
Van Eck Sequence
807th