12 Days of Christmas
463408
99 Bottles of Beer
397
Abundant Numbers
509
Catalan’s Constant
63
Divisors
507452
Emirp Numbers
318
Fibonacci
452388
Fizz Buzz
392422
Foo Fizz Buzz Bar
444
Fractions
423
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
326
United States
163
Vampire Numbers
83
π
961065756