12 Days of Christmas
788
99 Bottles of Beer
658
Abundant Numbers
830
Abundant Numbers (Long)
885
Arabic to Roman
484
Arithmetic Numbers
881
Arrows
377
ASCII Table
489
Card Number Validation
507
Catalan Numbers
344
Christmas Trees
696
Collatz
787748
CSS Colors
151
Day of Week
535
Divisors
872
Emirp Numbers
491
Emirp Numbers (Long)
562
Emojify
231
Evil Numbers
746
Evil Numbers (Long)
818
Factorial Factorisation
588
Farey Sequence
516
Fibonacci
500
574
Fizz Buzz
797
Foo Fizz Buzz Bar
748
Fractions
616
Happy Numbers
513
Happy Numbers (Long)
593
Intersection
625
ISBN
626
Kaprekar Numbers
162
Kolakoski Constant
96
Kolakoski Sequence
228
Leap Years
719
Levenshtein Distance
378
Leyland Numbers
414
ln 2
482
Morse Encoder
100
N Queens
472
Niven Numbers
789
Niven Numbers (Long)
919
Number Spiral
338
Odious Numbers
747
Odious Numbers (Long)
837
Ordinal Numbers
678
Pangram Grep
652
Partition Numbers
614738
Pascal’s Triangle
605
Pernicious Numbers
565
Pernicious Numbers (Long)
724
Prime Numbers
901
Prime Numbers (Long)
902
Quine
824
Recamán
642
Reverse Polish Notation
449
Rijndael S-box
201
Roman to Arabic
431
ROT13
432
Set
543
Seven Segment
358
Smith Numbers
552
Tic-tac-toe
316
Time Distance
630
Tongue-twisters
567
Transpose Sentence
429
United States
114106
Vampire Numbers
345
Van Eck Sequence
550
π
68
τ
70
φ
606
√2
808
𝑒
410