12 Days of Christmas
623
99 Bottles of Beer
582
Abundant Numbers
533
Arabic to Roman
509
Christmas Trees
427
CSS Colors
100
Cubes
299
Diamonds
324
Divisors
667
747
Emirp Numbers
521
Evil Numbers
545
684
Fibonacci
780
Fizz Buzz
534356631
Happy Numbers
623
Leap Years
757
667
Leyland Numbers
110
Morse Decoder
299
Morse Encoder
306
Niven Numbers
579
Odious Numbers
536
656
Ordinal Numbers
228
Pangram Grep
333
Pascal’s Triangle
149
Pernicious Numbers
495
Prime Numbers
563
771
Quine
628
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
235
π
204
τ
201
φ
169
√2
204
𝑒
161