Abundant Numbers
723
Abundant Numbers (Long)
897
Arithmetic Numbers
861
Catalan Numbers
792
Collatz
932
Divisors
599846
Evil Numbers
772
957
Evil Numbers (Long)
662
Fibonacci
893
Fizz Buzz
938975
Foo Fizz Buzz Bar
891
Happy Numbers
523
Happy Numbers (Long)
734
Leap Years
839
Leyland Numbers
660
Niven Numbers
713
Niven Numbers (Long)
835
Odious Numbers
640827768
Odious Numbers (Long)
668
Pascal’s Triangle
661612
Pernicious Numbers
627
Prime Numbers
658
Prime Numbers (Long)
757
Recamán
801
Smith Numbers
558
Sudoku
495
Van Eck Sequence
657