12 Days of Christmas
400
402
Abundant Numbers
678
Arabic to Roman
380
419
Arithmetic Numbers
544
669
715
802444
721
679
722
Arrows
177
Ascending Primes
113
92
244
326
Card Number Validation
354
490
Catalan’s Constant
129
59
CSS Colors
75
Day of Week
314563419
660
Divisors
831
Emojify
258
Factorial Factorisation
289
Farey Sequence
391
Fizz Buzz
755
830645
942234
949893
822
868
Fractions
584
Intersection
493
ISBN
351
Kaprekar Numbers
126
67
Leap Years
529
Levenshtein Distance
215
N Queens
235
Niven Numbers
617
Niven Numbers (Long)
676
Ordinal Numbers
519
514
PalindromemordnilaP
609
Prime Numbers
633
Quine
615
967
411357723
336
574428877
11852159528
467
307
650634
318591202
946259
857632104
820
Repeating Decimals
363
Rock-paper-scissors-Spock-lizard
379
Roman to Arabic
408
Seven Segment
257
Spelling Numbers
195
Star Wars Opening Crawl
224
Tic-tac-toe
413
United States
100
Vampire Numbers
104
62
γ
22717823424529616911120119360102889010918110092
1691784686
3382047040111116193214486227803406994621855329156204
338226197393534134515182
λ
22918723824922919617320417097193115149175164173165
213
π
8596119102789998113675343628290566748
1372762
1261525829
10213316017325745050561033815640142
34120313568252108132111
τ
80
φ
53
√2
50
𝑒
55
112
72