12 Days of Christmas
658
99 Bottles of Beer
600
Abundant Numbers
570
Arabic to Roman
509
Christmas Trees
432
CSS Colors
183
Cubes
191
Diamonds
328
Divisors
668
749
Emirp Numbers
716
Evil Numbers
535
686
Fibonacci
631
787
Fizz Buzz
537358636
Happy Numbers
727
Leap Years
759
588
Leyland Numbers
110
Morse Decoder
259
Morse Encoder
200
Niven Numbers
586
Odious Numbers
527
659
Ordinal Numbers
233
Pangram Grep
335
Pascal’s Triangle
149
Pernicious Numbers
497
Prime Numbers
574
774
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
204
τ
201
φ
170
√2
205
𝑒
161