12 Days of Christmas
444
99 Bottles of Beer
626
Abundant Numbers
791
Abundant Numbers (Long)
874
Arabic to Roman
482
Arithmetic Numbers
892
Arrows
466
ASCII Table
473
Card Number Validation
507
Catalan Numbers
344
Christmas Trees
687
Collatz
784741
CSS Colors
68
Day of Week
567
Divisors
871
Emirp Numbers
332
Emirp Numbers (Long)
562
Emojify
226
Evil Numbers
745
Evil Numbers (Long)
817
Factorial Factorisation
588
Farey Sequence
528
Fibonacci
500
573
Fizz Buzz
788
Foo Fizz Buzz Bar
735
Fractions
614
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
413
ln 2
482
Morse Encoder
128
N Queens
533
Niven Numbers
779
Niven Numbers (Long)
912
Number Spiral
308
Odious Numbers
747
Odious Numbers (Long)
837
Ordinal Numbers
670
Pangram Grep
646
Partition Numbers
612734
Pascal’s Triangle
605
Pernicious Numbers
564
Pernicious Numbers (Long)
724
Prime Numbers
774
Prime Numbers (Long)
902
Quine
823
Recamán
639
Reverse Polish Notation
449
Rijndael S-box
203
Roman to Arabic
414
ROT13
428
Set
543
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
797
𝑒
406