Arabic to Roman
670
Arrows
507
Card Number Validation
744
Christmas Trees
537
763
Collatz
835
Cubes
508
Emirp Numbers
629
Fibonacci
511
428
Fizz Buzz
703
Leap Years
731
Levenshtein Distance
671
966
ln 2
903
Morse Encoder
665
Prime Numbers
633
Roman to Arabic
321
Transpose Sentence
739
United States
Vampire Numbers
720
Zeckendorf Representation
848
τ
8198
13764113594045