12 Days of Christmas
658
99 Bottles of Beer
605
Abundant Numbers
569
Arabic to Roman
517
Christmas Trees
432
CSS Colors
183
Cubes
191
Diamonds
328
Divisors
668
748
Emirp Numbers
716
Evil Numbers
535
686
Fibonacci
631
787
Fizz Buzz
537358635
Happy Numbers
728
Leap Years
759
670
Leyland Numbers
110
Morse Decoder
259
Morse Encoder
200
Niven Numbers
585
Odious Numbers
527
659
Ordinal Numbers
233
Pangram Grep
335
Pascal’s Triangle
149
Pernicious Numbers
497
Prime Numbers
574
773
Quine
629
Rock-paper-scissors-Spock-lizard
605
Roman to Arabic
270
Rule 110
10
Seven Segment
333
Sierpiński Triangle
361
Tongue-twisters
718
United States
254
Vampire Numbers
278
λ
528
π
203
τ
201
φ
169
√2
205
𝑒
161