12 Days of Christmas
813
Abundant Numbers
697
Abundant Numbers (Long)
839
Arithmetic Numbers
694
Collatz
887
CSS Colors
233
Day of Week
782
Divisors
790
Emojify
301
Evil Numbers
633
Evil Numbers (Long)
624
Fibonacci
652
486
Fizz Buzz
840
779
Foo Fizz Buzz Bar
860
794
Fractions
648
ISBN
620
Leap Years
848
662
Morse Decoder
280
Morse Encoder
335
Niven Numbers
746
Niven Numbers (Long)
814
Odious Numbers
783
Odious Numbers (Long)
765
Ordinal Numbers
848
Pangram Grep
761
Prime Numbers
613
Prime Numbers (Long)
648
Seven Segment
497
Tongue-twisters
589
600
United States
290
π
253