99 Bottles of Beer
331
Abundant Numbers
587
Abundant Numbers (Long)
646
Arithmetic Numbers
582
Ascending Primes
310
Christmas Trees
364
Collatz
716
CSS Colors
78
Cubes
270
Day of Week
207
Divisors
604
Emirp Numbers
370
Emirp Numbers (Long)
417
Emojify
241
Evil Numbers
569
Evil Numbers (Long)
563
Fibonacci
807
Fizz Buzz
604
Foo Fizz Buzz Bar
508
Happy Numbers
334
Happy Numbers (Long)
418
ISBN
547
Leap Years
756
Look and Say
118
Medal Tally
339
Morse Encoder
175
Niven Numbers
626
Niven Numbers (Long)
687
Number Spiral
198
Odious Numbers
568
Odious Numbers (Long)
562
Ordinal Numbers
322
Pangram Grep
499
Pernicious Numbers
334
Pernicious Numbers (Long)
414
Prime Numbers
510
Prime Numbers (Long)
542
Recamán
641
ROT13
797
Seven Segment
219
Smith Numbers
353
Time Distance
271
Tongue-twisters
306
United States
120
Van Eck Sequence
483
π
248