12 Days of Christmas
687
99 Bottles of Beer
641
Abundant Numbers
629
Arabic to Roman
595
Christmas Trees
478
CSS Colors
208
Cubes
212
Diamonds
365
Divisors
690
831
Emirp Numbers
797
Evil Numbers
580
753
Fibonacci
840
Fizz Buzz
545364667
Happy Numbers
798
Leap Years
783
724
Leyland Numbers
122
Morse Decoder
296
Morse Encoder
230
Niven Numbers
633
Odious Numbers
562
725
Ordinal Numbers
234
Pangram Grep
362
Pascal’s Triangle
168
Pernicious Numbers
542
Prime Numbers
598
846
Quine
684
Rock-paper-scissors-Spock-lizard
662
Roman to Arabic
311
Rule 110
11
Seven Segment
386
Sierpiński Triangle
401
Tongue-twisters
753
United States
279
Vampire Numbers
316
λ
580
π
223
τ
224
φ
189
√2
228
𝑒
177