Abundant Numbers
794th
Abundant Numbers (Long)
344th
Arithmetic Numbers
417th
Catalan Numbers
706th
Collatz
333rd
Divisors
4,014th1,887th
Evil Numbers
1,476th
190th
Evil Numbers (Long)
1,484th
Fibonacci
2,599th
Fizz Buzz
2,272nd3,443rd
Foo Fizz Buzz Bar
1,280th
Happy Numbers
1,174th
Happy Numbers (Long)
837th
Leap Years
1,264th
Leyland Numbers
863rd
Niven Numbers
2,108th
Niven Numbers (Long)
1,013th
Odious Numbers
2,196th1,076th1,556th
Odious Numbers (Long)
1,340th
Pascal’s Triangle
1,367th1,532nd
Pernicious Numbers
1,670th
Prime Numbers
1,773rd
Prime Numbers (Long)
1,230th
Recamán
637th
Smith Numbers
624th
Sudoku
303rd
Van Eck Sequence
693rd