12 Days of Christmas
611
99 Bottles of Beer
594
Abundant Numbers
485
Arabic to Roman
506
Christmas Trees
406
CSS Colors
184
Cubes
189
Diamonds
277
Divisors
661
738
Emirp Numbers
712
Evil Numbers
534
684
Fibonacci
629
772
Fizz Buzz
533354628
Happy Numbers
716
Leap Years
756
583
Leyland Numbers
109
Morse Decoder
254
Morse Encoder
198
Niven Numbers
572
Odious Numbers
513
654
Ordinal Numbers
226
Pangram Grep
299
Pascal’s Triangle
148
Pernicious Numbers
491
Prime Numbers
574
772
Quine
628
Rock-paper-scissors-Spock-lizard
589
Roman to Arabic
265
Rule 110
10
Seven Segment
328
Sierpiński Triangle
354
Tongue-twisters
718
United States
250
Vampire Numbers
275
λ
525
π
203
τ
201
φ
169
√2
204
𝑒
160