12 Days of Christmas
444
99 Bottles of Beer
624
Abundant Numbers
789
Abundant Numbers (Long)
874
Arabic to Roman
481
Arithmetic Numbers
891
Arrows
466
ASCII Table
473
Card Number Validation
507
Catalan Numbers
344
Christmas Trees
685
Collatz
784761
CSS Colors
68
Day of Week
566
Divisors
870
Emirp Numbers
331
Emirp Numbers (Long)
562
Emojify
226
Evil Numbers
744
Evil Numbers (Long)
817
Factorial Factorisation
588
Farey Sequence
528
Fibonacci
500
573
Fizz Buzz
786
Foo Fizz Buzz Bar
735
Fractions
612
Happy Numbers
362
Happy Numbers (Long)
588
Intersection
622
ISBN
616
Kaprekar Numbers
162
Kolakoski Constant
95
Kolakoski Sequence
228
Leap Years
716
Levenshtein Distance
378
Leyland Numbers
412
ln 2
482
Morse Encoder
158
N Queens
547
Niven Numbers
777
Niven Numbers (Long)
912
Number Spiral
311
Odious Numbers
746
Odious Numbers (Long)
837
Ordinal Numbers
670
Pangram Grep
645
Partition Numbers
612734
Pascal’s Triangle
605
Pernicious Numbers
564
Pernicious Numbers (Long)
724
Prime Numbers
773
Prime Numbers (Long)
902
Quine
820
Recamán
639
Reverse Polish Notation
449
Rijndael S-box
203
Roman to Arabic
414
ROT13
428
Set
540
Seven Segment
351
Smith Numbers
552
Tic-tac-toe
315
Time Distance
580
Tongue-twisters
344
Transpose Sentence
429
United States
108104
Vampire Numbers
342
Van Eck Sequence
550
π
68
τ
69
φ
600
√2
796
𝑒
406