12 Days of Christmas
789
99 Bottles of Beer
650
Abundant Numbers
832
Abundant Numbers (Long)
889
Arabic to Roman
488
Arithmetic Numbers
885
Arrows
380
ASCII Table
514
Card Number Validation
509
Catalan Numbers
345
Christmas Trees
697
Collatz
560752
CSS Colors
151
Day of Week
540
Divisors
878
Emirp Numbers
533
Emirp Numbers (Long)
563
Emojify
232
Evil Numbers
750
Evil Numbers (Long)
823
Factorial Factorisation
587
Farey Sequence
559
Fibonacci
500
579
Fizz Buzz
799
Foo Fizz Buzz Bar
750
Fractions
616
Happy Numbers
515
Happy Numbers (Long)
603
Intersection
629
ISBN
645
Kaprekar Numbers
162
Kolakoski Constant
97
Kolakoski Sequence
257
Leap Years
720
Levenshtein Distance
385
Leyland Numbers
428
ln 2
396483
Minesweeper
370
Morse Encoder
103
N Queens
473
Niven Numbers
794
Niven Numbers (Long)
924
Number Spiral
345
Odious Numbers
752
Odious Numbers (Long)
841
Ordinal Numbers
680
Pangram Grep
655
Partition Numbers
545741
Pascal’s Triangle
609
Pernicious Numbers
568
Pernicious Numbers (Long)
727
Prime Numbers
908
Prime Numbers (Long)
910
Quine
828
Recamán
644
Reverse Polish Notation
453
Rijndael S-box
202
Roman to Arabic
434
ROT13
435
Set
540
Seven Segment
360
Smith Numbers
554
Tic-tac-toe
316
Time Distance
629
Tongue-twisters
633
Transpose Sentence
423
Trinomial Triangle
39
United States
101104
Vampire Numbers
358
Van Eck Sequence
552
π
69
τ
70
φ
608
√2
839
𝑒
410