Abundant Numbers
791
Abundant Numbers (Long)
831
Christmas Trees
699
Collatz
873
Divisors
786
Emirp Numbers
531
Evil Numbers
705
Evil Numbers (Long)
705
Fibonacci
852
Fizz Buzz
769
Foo Fizz Buzz Bar
883
Fractions
689
Happy Numbers
588
Happy Numbers (Long)
696
Leap Years
892
Look and Say
864
Niven Numbers
950
Niven Numbers (Long)
872
Odious Numbers
588
Ordinal Numbers
805
Pascal’s Triangle
555
Prime Numbers
613
Recamán
625