Abundant Numbers
529
573
Abundant Numbers (Long)
519
590
Arithmetic Numbers
640
Catalan Numbers
253
Collatz
425556644673
Day of Week
639
Divisors
448
763606
Emirp Numbers
422
Evil Numbers
466
Evil Numbers (Long)
474
Fibonacci
346
556
Fizz Buzz
894
Happy Numbers
403
Happy Numbers (Long)
465
Leap Years
394
570
ln 2
515
Niven Numbers
327
364
Niven Numbers (Long)
414539
407
Odious Numbers
469
Odious Numbers (Long)
469
Pernicious Numbers
280
Pernicious Numbers (Long)
359
Prime Numbers
338461569494
Prime Numbers (Long)
353
571530
Quine
459
RecamΓ‘n
604
Ο
152
Ο
166
Ο
515
β2
521