12 Days of Christmas
411
99 Bottles of Beer
408
Abundant Numbers
721
Arabic to Roman
421
Christmas Trees
667
CSS Colors
108
Cubes
333
Diamonds
538
Divisors
947
Emirp Numbers
505
Emojify
368
Evil Numbers
976
Fibonacci
947
Fizz Buzz
869
Happy Numbers
449
Leap Years
877
782
Levenshtein Distance
387
Leyland Numbers
756
Lucky Tickets
Morse Decoder
222
Morse Encoder
270
Niven Numbers
733
Odious Numbers
976
Ordinal Numbers
635
Pangram Grep
726
Pascal’s Triangle
410
Pernicious Numbers
388
Prime Numbers
714
Quine
969
Recamán
528
583
454
786
300
Rock-paper-scissors-Spock-lizard
399
Roman to Arabic
649
Rule 110
10
Seven Segment
348
Sierpiński Triangle
607
Spelling Numbers
209
Tongue-twisters
301
United States
373
Vampire Numbers
69
λ
102
π
423
τ
417
φ
703
√2
742
𝑒
676