Arabic to Roman
740
Christmas Trees
737
Divisors
952
Emirp Numbers
745
Evil Numbers
619
Fibonacci
866
Fizz Buzz
925
Happy Numbers
932
Leap Years
808
Niven Numbers
870
Odious Numbers
626
Pangram Grep
756
Pascal’s Triangle
743
Prime Numbers
850
Quine
809
Sierpiński Triangle
708
λ
698
π
588
τ
578
φ
828
√2
813
𝑒
757