12 Days of Christmas
863
99 Bottles of Beer
692
Abundant Numbers
741
Abundant Numbers (Long)
825
Arabic to Roman
402
Arithmetic Numbers
819
Arrows
405
Ascending Primes
303
ASCII Table
380
Card Number Validation
580
Catalan Numbers
492
Christmas Trees
759
Collatz
859
CSS Colors
169
Cubes
598
Day of Week
623
Diamonds
450
Divisors
818
Emirp Numbers
607
Emirp Numbers (Long)
625
Emojify
378
Evil Numbers
586
Evil Numbers (Long)
596
Factorial Factorisation
332
Fibonacci
658
Fizz Buzz
730
Foo Fizz Buzz Bar
731
Fractions
700
Happy Numbers
636
Happy Numbers (Long)
539
ISBN
644
Leap Years
718
Leyland Numbers
839
Look and Say
630
Lucky Numbers
568
Mandelbrot
345
Medal Tally
535
Morse Decoder
332
Morse Encoder
338
Niven Numbers
708
Niven Numbers (Long)
786
Number Spiral
405
Odious Numbers
568
Odious Numbers (Long)
595
Ordinal Numbers
677
Pangram Grep
612
Partition Numbers
183
Pascal’s Triangle
625
Pernicious Numbers
602
Pernicious Numbers (Long)
661
Prime Numbers
604
Prime Numbers (Long)
649
Recamán
768
Rijndael S-box
279
Rock-paper-scissors-Spock-lizard
407
ROT13
508
Scrambled Sort
811
Seven Segment
561
Sierpiński Triangle
392
Spelling Numbers
360
Tic-tac-toe
393
Time Distance
435
Tongue-twisters
733
United States
319
Vampire Numbers
185
Van Eck Sequence
575
Zeckendorf Representation
632
Zodiac Signs
340