12 Days of Christmas
761
24 Game
283
99 Bottles of Beer
598
Abundant Numbers
591
Abundant Numbers (Long)
704
Arabic to Roman
449
Arithmetic Numbers
635
Arrows
290
Ascending Primes
326
ASCII Table
459
Card Number Validation
466
Catalan Numbers
492
Catalan’s Constant
115
Christmas Trees
616
Collatz
683608695
810733794803
755
CSS Colors
171
Cubes
370
Day of Week
801
Diamonds
346
Divisors
744
689551556891
Emirp Numbers
411
Emirp Numbers (Long)
452
Emojify
262294
Evil Numbers
714
Evil Numbers (Long)
702
Factorial Factorisation
322
Farey Sequence
439
Fibonacci
935
Fizz Buzz
715
854667915368
Foo Fizz Buzz Bar
711
890663
Forsyth–Edwards Notation
423
Fractions
616
Happy Numbers
447
Happy Numbers (Long)
510
Hexdump
397
523
Intersection
452
Inventory Sequence
506
ISBN
622
Jacobi Symbol
425
Kolakoski Constant
67
Kolakoski Sequence
25
Leap Years
597
Leyland Numbers
568
ln 2
51
Look and Say
667
Lucky Numbers
570
Lucky Tickets
358
Maze
196179243
Morse Decoder
99
Morse Encoder
108
N Queens
362
Niven Numbers
646
Niven Numbers (Long)
709
Number Spiral
208
Odious Numbers
739
Odious Numbers (Long)
725
Ordinal Numbers
498627459528
PalindromemordnilaP
735
Pangram Grep
746
Partition Numbers
258
Pascal’s Triangle
379
Pernicious Numbers
331
Pernicious Numbers (Long)
418
Polyominoes
191
Prime Numbers
405
Prime Numbers (Long)
433
Quine
944179
Recamán
537
Repeating Decimals
316
Rijndael S-box
90
Rock-paper-scissors-Spock-lizard
266
Roman to Arabic
503
ROT13
434
Seven Segment
355
Sierpiński Triangle
430
Smith Numbers
448
Spelling Numbers
301
Sudoku
294
Sudoku (Fill-in)
153
Time Distance
428
459
Tongue-twisters
498
Transpose Sentence
520
266646
United States
118
Vampire Numbers
355
Van Eck Sequence
608
Zeckendorf Representation
375
470732503
γ
75
λ
159
π
63
τ
62
φ
601
√2
48
𝑒
46