12 Days of Christmas
417
402
Abundant Numbers
679
Arabic to Roman
381
420
Arithmetic Numbers
546
673
718
592446
725
680
711
Arrows
177
Ascending Primes
113
92
245
181
Card Number Validation
356
493
Catalan’s Constant
129
59
CSS Colors
75
Day of Week
316564421
661
Divisors
831
Emojify
258
Factorial Factorisation
288
Farey Sequence
392
Fizz Buzz
755
830598
943234
668893
822
868
Fractions
585
Intersection
494
ISBN
352
Kaprekar Numbers
126
68
Leap Years
530
Levenshtein Distance
215
ln 2
8192110997095
Minesweeper
N Queens
235
Niven Numbers
617
Niven Numbers (Long)
677
Ordinal Numbers
520
514
PalindromemordnilaP
611
Prime Numbers
633
Quine
602
958
411356722
333
573472872
11546160529
464
305
653633
318586201
944255
179630103
816
Repeating Decimals
364
Rock-paper-scissors-Spock-lizard
379
Roman to Arabic
408
Scrambled Sort
413
591
Seven Segment
257
Spelling Numbers
196
Star Wars Opening Crawl
224
Tic-tac-toe
412
United States
94
Vampire Numbers
104
62
γ
2241782092462971681122011936093889010918110092
1671784686
3381657040112116194211487228802416994621855319856204
338227194208534134516180
λ
22918721325022919617320415797168115150176165173165
213
π
849611999789998114675343628290566748
1372762
1261125829
1011331611742574505056793818840138
34220413569253108132111
τ
81
φ
53
√2
51
𝑒
55
112
66