12 Days of Christmas
679
99 Bottles of Beer
801
Abundant Numbers
887
Arabic to Roman
488
Christmas Trees
672
Diamonds
648
Divisors
910
Emirp Numbers
921
Evil Numbers
621
Fibonacci
809
Fizz Buzz
945798
Happy Numbers
800
Leap Years
667
Leyland Numbers
672
Morse Decoder
419
Morse Encoder
445
Niven Numbers
944
Odious Numbers
677
Ordinal Numbers
694
Pangram Grep
883
Pascal’s Triangle
833
Pernicious Numbers
527
Prime Numbers
843
Quine
967
354857
Roman to Arabic
Seven Segment
602
Sierpiński Triangle
810
Spelling Numbers
527
π
τ
φ
𝑒
709