99 Bottles of Beer
557
Arithmetic Numbers
411
Christmas Trees
233
Collatz
457
Divisors
511
Emirp Numbers
284
Emirp Numbers (Long)
320
Evil Numbers
479
Evil Numbers (Long)
475
Fibonacci
304
507
Fizz Buzz
491
Foo Fizz Buzz Bar
396
Happy Numbers
248
Happy Numbers (Long)
313
Look and Say
331
Niven Numbers
578568
Niven Numbers (Long)
654
Ordinal Numbers
271
392
Pangram Grep
427
Pernicious Numbers (Long)
476
Prime Numbers
316
Prime Numbers (Long)
375
Vampire Numbers
243
Van Eck Sequence
533
√2
563