12 Days of Christmas
789
99 Bottles of Beer
650
Abundant Numbers
832
Abundant Numbers (Long)
888
Arabic to Roman
484
Arithmetic Numbers
884
Arrows
377
ASCII Table
490
Card Number Validation
507
Catalan Numbers
345
Christmas Trees
696
Collatz
559751
CSS Colors
151
Day of Week
536
Divisors
875
Emirp Numbers
492
Emirp Numbers (Long)
563
Emojify
232
Evil Numbers
747
Evil Numbers (Long)
820
Factorial Factorisation
587
Farey Sequence
517
Fibonacci
500
576
Fizz Buzz
798
Foo Fizz Buzz Bar
750
Fractions
616
Happy Numbers
513
Happy Numbers (Long)
594
Intersection
627
ISBN
628
Kaprekar Numbers
162
Kolakoski Constant
96
Kolakoski Sequence
228
Leap Years
719
Levenshtein Distance
378
Leyland Numbers
415
ln 2
396482
Morse Encoder
100
N Queens
472
Niven Numbers
792
Niven Numbers (Long)
921
Number Spiral
338
Odious Numbers
750
Odious Numbers (Long)
839
Ordinal Numbers
678
Pangram Grep
654
Partition Numbers
443740
Pascal’s Triangle
607
Pernicious Numbers
567
Pernicious Numbers (Long)
725
Prime Numbers
904
Prime Numbers (Long)
904
Quine
821
Recamán
643
Reverse Polish Notation
451
Rijndael S-box
201
Roman to Arabic
431
ROT13
432
Set
543
Seven Segment
358
Smith Numbers
554
Tic-tac-toe
316
Time Distance
630
Tongue-twisters
567
Transpose Sentence
421
Trinomial Triangle
39
United States
101106
Vampire Numbers
346
Van Eck Sequence
552
π
68
τ
70
φ
606
√2
809
𝑒
410