12 Days of Christmas
622
99 Bottles of Beer
582
Abundant Numbers
531
Arabic to Roman
520
Christmas Trees
426
CSS Colors
100
Cubes
303
Diamonds
351
Divisors
667
744
Emirp Numbers
519
Evil Numbers
544
681
Fibonacci
778
Fizz Buzz
534
356
649
Happy Numbers
620
Leap Years
757
682
Leyland Numbers
109
Morse Decoder
338
Morse Encoder
334
Niven Numbers
577
Odious Numbers
535
654
Ordinal Numbers
228
Pangram Grep
332
Pascal’s Triangle
148
Pernicious Numbers
494
Prime Numbers
562
770
Quine
626
Rock-paper-scissors-Spock-lizard
638
Roman to Arabic
268
Rule 110
16
Seven Segment
319
Sierpiński Triangle
434
Tongue-twisters
598
United States
246
Vampire Numbers
187
λ
233
π
203
τ
200
φ
168
√2
204
𝑒
160