99 Bottles of Beer
Abundant Numbers
792
Arabic to Roman
Christmas Trees
666
Divisors
811825
Emirp Numbers
611765
Evil Numbers
821
Fibonacci
842
Fizz Buzz
889761
Happy Numbers
841893
Leap Years
885847
Levenshtein Distance
897
Morse Decoder
Morse Encoder
493
Niven Numbers
935
Odious Numbers
747
Ordinal Numbers
Pangram Grep
Pascal’s Triangle
590
Pernicious Numbers
690
Prime Numbers
770
Quine
967411492947467498
655463599430628771946417857
Roman to Arabic
649
Seven Segment
742
Sierpiński Triangle
Spelling Numbers
Vampire Numbers
111
λ
493
π
850
τ
87
φ
85
√2
88
𝑒
62