99 Bottles of Beer
Abundant Numbers
767
Arabic to Roman
Christmas Trees
667
Divisors
811825
Emirp Numbers
612755
Evil Numbers
822
Fibonacci
843
Fizz Buzz
627761
Happy Numbers
842894
Leap Years
867848
Levenshtein Distance
898
Morse Decoder
Morse Encoder
493
Niven Numbers
937
Odious Numbers
748
Ordinal Numbers
Pangram Grep
Pascal’s Triangle
591
Pernicious Numbers
692
Prime Numbers
771
Quine
968412480948468498
656464601431629772947417858
Roman to Arabic
652
Seven Segment
742
Sierpiński Triangle
Spelling Numbers
Vampire Numbers
111
λ
494
π
851
τ
87
φ
85
√2
88
𝑒
61