99 Bottles of Beer
346
Abundant Numbers
659
Christmas Trees
349
Diamonds
326
Divisors
886
Emirp Numbers
367
Evil Numbers
727
Fibonacci
910
Fizz Buzz
591
Happy Numbers
444
Leap Years
588
Niven Numbers
526
Odious Numbers
753
Pascalβs Triangle
548
Pernicious Numbers
641
Prime Numbers
484
Ξ»
99
Ο
56
Ο
56
Ο
50
β2
47
π
46