Abundant Numbers
1,522nd
Abundant Numbers (Long)
389th
Arithmetic Numbers
386th
Catalan Numbers
913th
Collatz
107th
Divisors
4,304th1,748th
Evil Numbers
1,832nd
282nd
Evil Numbers (Long)
1,831st
Fibonacci
2,901st
Fizz Buzz
1,609th2,078th
Foo Fizz Buzz Bar
947th
Happy Numbers
1,711th
Happy Numbers (Long)
858th
Leap Years
1,586th
Leyland Numbers
947th
Niven Numbers
2,645th
Niven Numbers (Long)
1,172nd
Odious Numbers
2,619th1,213th1,738th
Odious Numbers (Long)
1,665th
Pascal’s Triangle
1,536th1,750th
Pernicious Numbers
2,178th
Prime Numbers
2,663rd
Prime Numbers (Long)
1,507th
Recamán
617th
Smith Numbers
666th
Sudoku
267th
Van Eck Sequence
844th