12 Days of Christmas
892
99 Bottles of Beer
693
Abundant Numbers
741
Abundant Numbers (Long)
825
Arabic to Roman
460
Arithmetic Numbers
819
Arrows
405
Ascending Primes
310
ASCII Table
564
brainfuck
454
Card Number Validation
597
Catalan Numbers
659
Catalan’s Constant
59
Christmas Trees
759
Collatz
859
CSS Colors
174
Cubes
598
Day of Week
623
Diamonds
450
Divisors
831
Emirp Numbers
621
Emirp Numbers (Long)
625
Emojify
378
Evil Numbers
770
Evil Numbers (Long)
769
Factorial Factorisation
370
Farey Sequence
386
Fibonacci
658
Fizz Buzz
730
Foo Fizz Buzz Bar
731
Fractions
725
Happy Numbers
637
Happy Numbers (Long)
666
ISBN
811
Jacobi Symbol
657
Kaprekar Numbers
387
Kolakoski Constant
60
Kolakoski Sequence
417
Leap Years
718
Leyland Numbers
839
ln 2
615
Look and Say
630
Lucky Numbers
777
Mandelbrot
346
Medal Tally
532
Morse Decoder
339
Morse Encoder
345
Niven Numbers
708
Niven Numbers (Long)
786
Number Spiral
406
Odious Numbers
768
Odious Numbers (Long)
767
Ordinal Numbers
677
Pangram Grep
691
Partition Numbers
323
Pascal’s Triangle
625
Pernicious Numbers
602
Pernicious Numbers (Long)
662
Prime Numbers
604
Prime Numbers (Long)
659
Recamán
769
Rijndael S-box
279
Rock-paper-scissors-Spock-lizard
550
ROT13
509
Scrambled Sort
823
Seven Segment
561
SI Units
415
Sierpiński Triangle
452
Spelling Numbers
360
Tic-tac-toe
443
Time Distance
472
Tongue-twisters
733
United States
319
Vampire Numbers
185
Van Eck Sequence
840
Zeckendorf Representation
633
Zodiac Signs
369
γ
62
λ
100
π
219
τ
229
φ
50
√2
515
𝑒
504