Abundant Numbers
773
Abundant Numbers (Long)
939
Arithmetic Numbers
948
Ascending Primes
482
Catalan Numbers
957
Collatz
971
Divisors
983
Fibonacci
1,000
Fizz Buzz
951
Foo Fizz Buzz Bar
965
Happy Numbers
738
Happy Numbers (Long)
847
Leap Years
896
Leyland Numbers
730
Niven Numbers
936
Niven Numbers (Long)
926
Ordinal Numbers
880
Pascal’s Triangle
750
Prime Numbers
1,000
Prime Numbers (Long)
1,000
Recamán
871
United States
500
Vampire Numbers
891
π
793
τ
793
√2
891
𝑒
873