12 Days of Christmas
789
99 Bottles of Beer
650
Abundant Numbers
832
Abundant Numbers (Long)
888
Arabic to Roman
487
Arithmetic Numbers
884
Arrows
378
ASCII Table
514
Card Number Validation
507
Catalan Numbers
345
Christmas Trees
696
Collatz
560752
CSS Colors
151
Day of Week
536
Divisors
877
Emirp Numbers
532
Emirp Numbers (Long)
563
Emojify
232
Evil Numbers
748
Evil Numbers (Long)
821
Factorial Factorisation
587
Farey Sequence
559
Fibonacci
500
578
Fizz Buzz
799
Foo Fizz Buzz Bar
750
Fractions
616
Happy Numbers
514
Happy Numbers (Long)
604
Intersection
627
ISBN
645
Kaprekar Numbers
162
Kolakoski Constant
96
Kolakoski Sequence
256
Leap Years
719
Levenshtein Distance
385
Leyland Numbers
428
ln 2
396483
Minesweeper
370
Morse Encoder
103
N Queens
473
Niven Numbers
792
Niven Numbers (Long)
921
Number Spiral
346
Odious Numbers
752
Odious Numbers (Long)
840
Ordinal Numbers
678
Pangram Grep
655
Partition Numbers
543740
Pascal’s Triangle
607
Pernicious Numbers
567
Pernicious Numbers (Long)
725
Prime Numbers
904
Prime Numbers (Long)
904
Quine
821
Recamán
644
Reverse Polish Notation
453
Rijndael S-box
202
Roman to Arabic
433
ROT13
434
Set
540
Seven Segment
358
Smith Numbers
554
Tic-tac-toe
316
Time Distance
631
Tongue-twisters
632
Transpose Sentence
421
Trinomial Triangle
39
United States
101106
Vampire Numbers
358
Van Eck Sequence
552
π
68
τ
70
φ
606
√2
838
𝑒
410