99 Bottles of Beer
331
Abundant Numbers
585
Abundant Numbers (Long)
643
Arithmetic Numbers
568
Ascending Primes
313
Christmas Trees
362
Collatz
689
CSS Colors
78
Cubes
258
Day of Week
208
Divisors
590
Emirp Numbers
369
Emirp Numbers (Long)
407
Emojify
240
Evil Numbers
568
Evil Numbers (Long)
561
Fibonacci
805
Fizz Buzz
603
Foo Fizz Buzz Bar
506
Happy Numbers
347
Happy Numbers (Long)
415
ISBN
545
Leap Years
754
Look and Say
118
Medal Tally
331
Morse Encoder
171
Niven Numbers
622
Niven Numbers (Long)
681
Number Spiral
198
Odious Numbers
566
Odious Numbers (Long)
559
Ordinal Numbers
307
Pangram Grep
497
Pernicious Numbers
333
Pernicious Numbers (Long)
393
Prime Numbers
509
Prime Numbers (Long)
541
Recamán
651
ROT13
797
Seven Segment
215
Smith Numbers
351
Time Distance
269
Tongue-twisters
305
Trinomial Triangle
357
United States
119
Van Eck Sequence
482
π
253