Abundant Numbers
742
Abundant Numbers (Long)
833
Arithmetic Numbers
805
Ascending Primes
418
Catalan Numbers
957
Collatz
814
Divisors
931
Fibonacci
1,000
Fizz Buzz
869
Foo Fizz Buzz Bar
767
Happy Numbers
571
Happy Numbers (Long)
718
Leap Years
896
Leyland Numbers
620
Niven Numbers
936
Niven Numbers (Long)
909
Ordinal Numbers
717
Pascal’s Triangle
694
Prime Numbers
1,000
Prime Numbers (Long)
1,000
Recamán
786
United States
378
Vampire Numbers
655
π
707
τ
707
√2
891
𝑒
873