12 Days of Christmas
417
403
Abundant Numbers
679
Arabic to Roman
381
420
Arithmetic Numbers
547
673
718
588446
726
680
712
Arrows
177
Ascending Primes
114
92
246
181
Card Number Validation
348
493
Catalan’s Constant
129
59
CSS Colors
75
Day of Week
316565421
662
Divisors
831
Emojify
258
Factorial Factorisation
289
Farey Sequence
392
Fizz Buzz
756
830598
943234
668893
822
868
Fractions
585
Intersection
494
ISBN
352
Kaprekar Numbers
127
68
Leap Years
530
Levenshtein Distance
215
ln 2
8193110967195
Minesweeper
N Queens
235
Niven Numbers
617
Niven Numbers (Long)
678
Ordinal Numbers
520
515
PalindromemordnilaP
612
Prime Numbers
633
Quine
602
959
411356722
334
573473873
11546160529
464
306
653633
318586201
944255
179630103
817
Repeating Decimals
364
Rock-paper-scissors-Spock-lizard
378
Roman to Arabic
408
Scrambled Sort
416
591
Seven Segment
257
Spelling Numbers
194
Star Wars Opening Crawl
224
Tic-tac-toe
413
United States
94
Vampire Numbers
104
62
γ
2241782092362971681122011936094889011017610092
1681784686
3391657040112116194211383228802416994621855319856205
338227194208535134375180
λ
22918721324122919617320513397167115150176132173165
214
π
849611996789998114675343628290566748
1372762
1261125829
1011331611742574505056793814440138
34220413667254108132111
τ
81
φ
53
√2
51
𝑒
55
112
66