12 Days of Christmas
604
99 Bottles of Beer
580
Abundant Numbers
485
Arabic to Roman
505
Christmas Trees
406
CSS Colors
105
Cubes
299
Diamonds
277
Divisors
661
738
Emirp Numbers
517
Evil Numbers
534
684
Fibonacci
615
772
Fizz Buzz
533354628
Happy Numbers
616
Leap Years
741
582
Leyland Numbers
109
Morse Decoder
295
Morse Encoder
302
Niven Numbers
572
Odious Numbers
513
654
Ordinal Numbers
226
Pangram Grep
299
Pascal’s Triangle
148
Pernicious Numbers
491
Prime Numbers
563
772
Quine
628
Rock-paper-scissors-Spock-lizard
538
Roman to Arabic
264
Rule 110
15
Seven Segment
315
Sierpiński Triangle
427
Tongue-twisters
597
United States
247
Vampire Numbers
185
λ
234
π
203
τ
201
φ
169
√2
204
𝑒
160