Arabic to Roman
812
Christmas Trees
784
Divisors
1,000
Emirp Numbers
693
Evil Numbers
658
Fibonacci
897
Fizz Buzz
952
Happy Numbers
836
Leap Years
845
Niven Numbers
912
Odious Numbers
667
Pangram Grep
815
Pascal’s Triangle
798
Prime Numbers
896
Quine
854
Sierpiński Triangle
747
λ
656
π
622
τ
619
φ
884
√2
863
𝑒
800