12 Days of Christmas
622
99 Bottles of Beer
582
Abundant Numbers
531
Arabic to Roman
520
Christmas Trees
426
CSS Colors
100
Cubes
298
Diamonds
351
Divisors
667
745
Emirp Numbers
519
Evil Numbers
544
681
Fibonacci
778
Fizz Buzz
534356637
Happy Numbers
620
Leap Years
757
683
Leyland Numbers
110
Morse Decoder
338
Morse Encoder
334
Niven Numbers
578
Odious Numbers
536
654
Ordinal Numbers
228
Pangram Grep
332
Pascal’s Triangle
148
Pernicious Numbers
495
Prime Numbers
562
770
Quine
626
Rock-paper-scissors-Spock-lizard
639
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
203
τ
200
φ
169
√2
204
𝑒
160