99 Bottles of Beer
557
Arithmetic Numbers
418
Christmas Trees
233
Collatz
458
Divisors
511
Emirp Numbers
284
Emirp Numbers (Long)
321
Evil Numbers
479
Evil Numbers (Long)
476
Fibonacci
304
507
Fizz Buzz
491
Foo Fizz Buzz Bar
397
Happy Numbers
248
Happy Numbers (Long)
314
Look and Say
331
Niven Numbers
579568
Niven Numbers (Long)
656
Ordinal Numbers
271
392
Pangram Grep
427
Pernicious Numbers (Long)
477
Prime Numbers
316
Prime Numbers (Long)
376
Vampire Numbers
243
Van Eck Sequence
534
√2
564