Abundant Numbers
730
Abundant Numbers (Long)
812
Arithmetic Numbers
798
Ascending Primes
403
Catalan Numbers
931
Collatz
798
Divisors
917
Fibonacci
986
Fizz Buzz
862
Foo Fizz Buzz Bar
756
Happy Numbers
561
Happy Numbers (Long)
697
Leap Years
882
Leyland Numbers
604
Niven Numbers
918
Niven Numbers (Long)
902
Ordinal Numbers
699
Pascal’s Triangle
677
Prime Numbers
981
Prime Numbers (Long)
973
Recamán
768
United States
358
Vampire Numbers
638
π
693
τ
688
√2
871
𝑒
851