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
565
Ascending Primes
414
ASCII Table
415
Card Number Validation
535
Catalan Numbers
568
Christmas Trees
587
Collatz
753
CSS Colors
227
Cubes
454
Day of Week
713
Divisors
683
Emirp Numbers
476
Emirp Numbers (Long)
534
Emojify
541
Evil Numbers
784
Evil Numbers (Long)
766
Factorial Factorisation
343
Farey Sequence
573
Fibonacci
844
Fizz Buzz
889
Foo Fizz Buzz Bar
781
Fractions
471
Happy Numbers
689
Happy Numbers (Long)
601
Hexdump
406
ISBN
497
Leap Years
812
Leyland Numbers
810
Lucky Numbers
562
Morse Decoder
405
Morse Encoder
497
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
703
Roman to Arabic
650
ROT13
796
Seven Segment
441
Smith Numbers
397
Spelling Numbers
274
Tongue-twisters
411
Transpose Sentence
579
United States
391
Vampire Numbers
532
Van Eck Sequence
574
Zodiac Signs
505