12 Days of Christmas
449397
99 Bottles of Beer
398
Abundant Numbers
509
Catalan’s Constant
63
Divisors
507452
Emirp Numbers
317
Fibonacci
453388
Fizz Buzz
392422
Foo Fizz Buzz Bar
442
Fractions
422
Happy Numbers
218
Happy Numbers (Long)
259
ISBN
369
Leap Years
410582
Niven Numbers
405
Pangram Grep
201
Pernicious Numbers
251
Prime Numbers
443
Prime Numbers (Long)
454
Quine
378
Tongue-twisters
322
United States
163
Vampire Numbers
82
π
961065756