Abundant Numbers
450
688719
Abundant Numbers (Long)
709
Arithmetic Numbers
513
807750
Catalan Numbers
680
Christmas Trees
610
Collatz
677
775793
CSS Colors
227
Day of Week
824
Divisors
675
890829
Emojify
355
Evil Numbers
499
755590
Fibonacci
549
789544
Fizz Buzz
854
929
Foo Fizz Buzz Bar
724540900473
Leap Years
638
633
Morse Encoder
213
Odious Numbers
498
725604
Pangram Grep
435
Prime Numbers
555
422
Seven Segment
409
United States
151
β2
707