12 Days of Christmas
787
99 Bottles of Beer
656
Abundant Numbers
827
Abundant Numbers (Long)
883
Arabic to Roman
482
Arithmetic Numbers
891
Arrows
377
ASCII Table
489
Card Number Validation
507
Catalan Numbers
344
Christmas Trees
692
Collatz
786767
CSS Colors
151
Day of Week
566
Divisors
870
Emirp Numbers
490
Emirp Numbers (Long)
562
Emojify
231
Evil Numbers
744
Evil Numbers (Long)
817
Factorial Factorisation
588
Farey Sequence
528
Fibonacci
500
573
Fizz Buzz
795
Foo Fizz Buzz Bar
748
Fractions
612
Happy Numbers
511
Happy Numbers (Long)
592
Intersection
624
ISBN
623
Kaprekar Numbers
162
Kolakoski Constant
96
Kolakoski Sequence
228
Leap Years
718
Levenshtein Distance
378
Leyland Numbers
413
ln 2
482
Morse Encoder
104
N Queens
547
Niven Numbers
787
Niven Numbers (Long)
919
Number Spiral
338
Odious Numbers
746
Odious Numbers (Long)
837
Ordinal Numbers
678
Pangram Grep
648
Partition Numbers
612734
Pascal’s Triangle
605
Pernicious Numbers
564
Pernicious Numbers (Long)
724
Prime Numbers
900
Prime Numbers (Long)
902
Quine
820
Recamán
642
Reverse Polish Notation
449
Rijndael S-box
201
Roman to Arabic
430
ROT13
428
Set
540
Seven Segment
358
Smith Numbers
552
Tic-tac-toe
315
Time Distance
628
Tongue-twisters
569
Transpose Sentence
429
United States
114106
Vampire Numbers
345
Van Eck Sequence
550
π
68
τ
70
φ
606
√2
807
𝑒
409