99 Bottles of Beer
881
Christmas Trees
729
Divisors
721
Emirp Numbers
589
Evil Numbers
638
Fibonacci
917
Fizz Buzz
949
Happy Numbers
639
Niven Numbers
955
Odious Numbers
638
Pangram Grep
541
Pascal’s Triangle
477
Pernicious Numbers
466
Prime Numbers
632
Quine
909
862
Sierpiński Triangle
87
λ
227
π
606
τ
80
φ
65
𝑒
65