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
370
Evil Numbers (Long)
42
Fibonacci
494
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
563
Pangram Grep
388
Pernicious Numbers
345
Prime Numbers
470
Recamán
369
Seven Segment
372
Spelling Numbers
243
Time Distance
206
Tongue-twisters
286
United States
152