12 Days of Christmas
446
99 Bottles of Beer
622
Abundant Numbers
795
Abundant Numbers (Long)
880
Arabic to Roman
488
Arithmetic Numbers
885
Arrows
470
ASCII Table
497
Card Number Validation
509
Catalan Numbers
345
Christmas Trees
690
Collatz
558746
CSS Colors
69
Day of Week
540
Divisors
878
Emirp Numbers
359
Emirp Numbers (Long)
563
Emojify
227
Evil Numbers
750
Evil Numbers (Long)
823
Factorial Factorisation
584
Farey Sequence
559
Fibonacci
500
579
Fizz Buzz
792
Foo Fizz Buzz Bar
737
Fractions
616
Happy Numbers
364
Happy Numbers (Long)
601
Intersection
628
ISBN
639
Kaprekar Numbers
162
Kolakoski Constant
96
Kolakoski Sequence
257
Leap Years
718
Levenshtein Distance
385
Leyland Numbers
428
ln 2
387483
Minesweeper
363
Morse Encoder
134
N Queens
469
Niven Numbers
785
Niven Numbers (Long)
917
Number Spiral
315
Odious Numbers
752
Odious Numbers (Long)
841
Ordinal Numbers
672
Pangram Grep
651
Partition Numbers
545741
Pascal’s Triangle
609
Pernicious Numbers
568
Pernicious Numbers (Long)
727
Prime Numbers
780
Prime Numbers (Long)
910
Quine
828
Recamán
642
Reverse Polish Notation
453
Rijndael S-box
204
Roman to Arabic
418
ROT13
435
Set
540
Seven Segment
336
Smith Numbers
554
Tic-tac-toe
312
Time Distance
582
Tongue-twisters
384
Transpose Sentence
423
Trinomial Triangle
39
United States
95102
Vampire Numbers
355
Van Eck Sequence
552
π
69
τ
70
φ
601
√2
828
𝑒
408