12 Days of Christmas
679
99 Bottles of Beer
799
Abundant Numbers
887
Arabic to Roman
488
Christmas Trees
673
Diamonds
648
Divisors
910
Emirp Numbers
922
Evil Numbers
621
Fibonacci
809
Fizz Buzz
945798
Happy Numbers
801
Leap Years
667
Leyland Numbers
673
Morse Decoder
419
Morse Encoder
445
Niven Numbers
944
Odious Numbers
677
Ordinal Numbers
694
Pangram Grep
883
Pascal’s Triangle
834
Pernicious Numbers
527
Prime Numbers
844
Quine
958
348179
Roman to Arabic
Seven Segment
602
Sierpiński Triangle
810
Spelling Numbers
527
π
τ
φ
𝑒
709