12 Days of Christmas
622
99 Bottles of Beer
582
Abundant Numbers
533
Arabic to Roman
522
Christmas Trees
427
CSS Colors
100
Cubes
298
Diamonds
351
Divisors
667
746
Emirp Numbers
520
Evil Numbers
545
682
Fibonacci
779
Fizz Buzz
534356630
Happy Numbers
622
Leap Years
757
684
Leyland Numbers
110
Morse Decoder
299
Morse Encoder
329
Niven Numbers
578
Odious Numbers
536
655
Ordinal Numbers
228
Pangram Grep
332
Pascal’s Triangle
149
Pernicious Numbers
495
Prime Numbers
562
771
Quine
627
Rock-paper-scissors-Spock-lizard
543
Roman to Arabic
268
Rule 110
16
Seven Segment
319
Sierpiński Triangle
434
Tongue-twisters
598
United States
247
Vampire Numbers
187
λ
234
π
204
τ
200
φ
169
√2
204
𝑒
160