12 Days of Christmas
404
99 Bottles of Beer
425
Abundant Numbers
521
Christmas Trees
654
Collatz
579
Divisors
536
Emirp Numbers
253
Emojify
217
Evil Numbers
369
Evil Numbers (Long)
42
Fibonacci
493
Fizz Buzz
538
Foo Fizz Buzz Bar
695
Happy Numbers
310
Leap Years
512
Look and Say
131
Niven Numbers
511
Niven Numbers (Long)
657
Odious Numbers
373
Ordinal Numbers
562
Pangram Grep
387
Pernicious Numbers
345
Prime Numbers
469
Recamán
369
Seven Segment
372
Spelling Numbers
247
Time Distance
210
Tongue-twisters
291
United States
159