12 Days of Christmas
622
99 Bottles of Beer
582
Abundant Numbers
532
Arabic to Roman
509
Christmas Trees
427
CSS Colors
100
Cubes
298
Diamonds
323
Divisors
667
746
Emirp Numbers
520
Evil Numbers
545
683
Fibonacci
779
Fizz Buzz
534356630
Happy Numbers
622
Leap Years
757
666
Leyland Numbers
110
Morse Decoder
299
Morse Encoder
306
Niven Numbers
578
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
234
π
204
τ
201
φ
169
√2
204
𝑒
161