12 Days of Christmas
589
99 Bottles of Beer
438
Abundant Numbers
729
Abundant Numbers (Long)
873
Catalan Numbers
537
Catalan’s Constant
71
Christmas Trees
602
Collatz
773
Diamonds
372
Divisors
919
Emirp Numbers
586
Emirp Numbers (Long)
650
Evil Numbers
769
Evil Numbers (Long)
759
Fibonacci
900
Fizz Buzz
630
Foo Fizz Buzz Bar
634
Leap Years
827
Niven Numbers
759
Niven Numbers (Long)
833
Odious Numbers
800
Odious Numbers (Long)
804
Ordinal Numbers
669
Pernicious Numbers
317
Prime Numbers
597
Prime Numbers (Long)
638
λ
162
π
64
τ
64
φ
52
√2
48
𝑒
47