12 Days of Christmas
872
99 Bottles of Beer
708
Abundant Numbers
513
Christmas Trees
645
Collatz
571
Divisors
519
Emirp Numbers
399
Emojify
229
Evil Numbers
366
Evil Numbers (Long)
42
Fibonacci
488
Fizz Buzz
535
Foo Fizz Buzz Bar
735
Happy Numbers
458
Leap Years
507
Look and Say
128
Niven Numbers
498
Niven Numbers (Long)
636
Odious Numbers
367
Ordinal Numbers
564
Pangram Grep
377
Pernicious Numbers
337
Prime Numbers
467
Recamán
359
Seven Segment
396
Spelling Numbers
448
Time Distance
330
Tongue-twisters
493
United States
160