12 Days of Christmas
818
99 Bottles of Beer
698
Abundant Numbers
902
Abundant Numbers (Long)
968
Arabic to Roman
540
Arithmetic Numbers
971
Arrows
419
ASCII Table
525
Card Number Validation
565
Catalan Numbers
388
Christmas Trees
760
Collatz
839841
CSS Colors
179
Day of Week
640
Divisors
953
Emirp Numbers
541
Emirp Numbers (Long)
625
Emojify
246
Evil Numbers
816
Evil Numbers (Long)
902
Factorial Factorisation
649
Farey Sequence
589
Fibonacci
500
623
Fizz Buzz
841
Foo Fizz Buzz Bar
812
Fractions
701
Happy Numbers
559
Happy Numbers (Long)
655
Intersection
712
ISBN
694
Kaprekar Numbers
175
Kolakoski Constant
107
Kolakoski Sequence
257
Leap Years
772
Levenshtein Distance
435
Leyland Numbers
464
ln 2
533
Morse Encoder
113
N Queens
618
Niven Numbers
846
Niven Numbers (Long)
1,000
Number Spiral
385
Odious Numbers
820
Odious Numbers (Long)
923
Ordinal Numbers
750
Pangram Grep
721
Partition Numbers
688822
Pascal’s Triangle
680
Pernicious Numbers
618
Pernicious Numbers (Long)
789
Prime Numbers
1,000
Prime Numbers (Long)
1,000
Quine
914
Recamán
708
Reverse Polish Notation
539
Rijndael S-box
226
Roman to Arabic
476
ROT13
488
Set
622
Seven Segment
396
Smith Numbers
617
Tic-tac-toe
350
Time Distance
684
Tongue-twisters
586
Transpose Sentence
500
United States
123115
Vampire Numbers
382
Van Eck Sequence
624
π
75
τ
77
φ
659
√2
862
𝑒
447