99 Bottles of Beer
578
Abundant Numbers
613
Abundant Numbers (Long)
718
Arithmetic Numbers
675
Ascending Primes
357
Christmas Trees
418
Collatz
793
CSS Colors
177
Cubes
385
Day of Week
259
Divisors
638
Emirp Numbers
450
Emirp Numbers (Long)
501
Emojify
274
Evil Numbers
569
Evil Numbers (Long)
563
Fibonacci
807
Fizz Buzz
662
Foo Fizz Buzz Bar
640
Happy Numbers
450
Happy Numbers (Long)
492
ISBN
701
Leap Years
757
Look and Say
146
Medal Tally
458
Morse Encoder
253
Niven Numbers
628
Niven Numbers (Long)
689
Number Spiral
243
Odious Numbers
568
Odious Numbers (Long)
562
Ordinal Numbers
395
Pangram Grep
589
Pernicious Numbers
334
Pernicious Numbers (Long)
422
Prime Numbers
510
Prime Numbers (Long)
543
Recamán
727
ROT13
918
Seven Segment
298
Smith Numbers
480
Time Distance
488
Tongue-twisters
550
Trinomial Triangle
418
United States
162
Van Eck Sequence
511
π
284