Abundant Numbers
761
Abundant Numbers (Long)
916
Arithmetic Numbers
920
Ascending Primes
462
Catalan Numbers
930
Collatz
950
Divisors
967
Fibonacci
986
Fizz Buzz
945
Foo Fizz Buzz Bar
951
Happy Numbers
723
Happy Numbers (Long)
821
Leap Years
883
Leyland Numbers
709
Niven Numbers
921
Niven Numbers (Long)
904
Ordinal Numbers
857
Pascal’s Triangle
731
Prime Numbers
981
Prime Numbers (Long)
972
Recamán
851
United States
519
Vampire Numbers
863
π
775
τ
769
√2
874
𝑒
853