12 Days of Christmas
400
99 Bottles of Beer
445
Abundant Numbers
685
Abundant Numbers (Long)
751
Arabic to Roman
450
Arithmetic Numbers
715
Arrows
568
Ascending Primes
414
ASCII Table
415
Card Number Validation
535
Catalan Numbers
568
Christmas Trees
588
Collatz
753
CSS Colors
227
Cubes
456
Day of Week
713
Divisors
683
Emirp Numbers
476
Emirp Numbers (Long)
534
Emojify
541
Evil Numbers
784
Evil Numbers (Long)
767
Factorial Factorisation
343
Farey Sequence
572
Fibonacci
844
Fizz Buzz
890
Foo Fizz Buzz Bar
783
Fractions
471
Happy Numbers
689
Happy Numbers (Long)
601
Hexdump
405
ISBN
497
Leap Years
812
Leyland Numbers
810
Lucky Numbers
563
Morse Decoder
406
Morse Encoder
498
Niven Numbers
767
Niven Numbers (Long)
833
Odious Numbers
781
Odious Numbers (Long)
763
Pangram Grep
721
Pernicious Numbers
708
Pernicious Numbers (Long)
743
Prime Numbers
754
Prime Numbers (Long)
638
Quine
364
Recamán
702
Roman to Arabic
650
ROT13
796
Seven Segment
441
Smith Numbers
398
Spelling Numbers
274
Tongue-twisters
412
Transpose Sentence
578
United States
391
Vampire Numbers
536
Van Eck Sequence
574
Zodiac Signs
505