12 Days of Christmas
585
99 Bottles of Beer
436
Abundant Numbers
718
Abundant Numbers (Long)
852
Catalan Numbers
522
Catalan’s Constant
70
Christmas Trees
592
Collatz
757
Diamonds
365
Divisors
905
Emirp Numbers
574
Emirp Numbers (Long)
629
Evil Numbers
755
Evil Numbers (Long)
740
Fibonacci
888
Fizz Buzz
626
Foo Fizz Buzz Bar
625
Leap Years
815
Niven Numbers
747
Niven Numbers (Long)
815
Odious Numbers
784
Odious Numbers (Long)
782
Ordinal Numbers
652
Pernicious Numbers
310
Prime Numbers
586
Prime Numbers (Long)
621
λ
159
π
63
τ
62
φ
51
√2
48
𝑒
46