12 Days of Christmas
359
99 Bottles of Beer
343
Abundant Numbers
706
Arabic to Roman
259
Christmas Trees
594
Diamonds
426
Divisors
837
Emirp Numbers
585
Evil Numbers
957
Fibonacci
958
Fizz Buzz
860745
Happy Numbers
451
Leap Years
782
Leyland Numbers
571
Lucky Tickets
398
Niven Numbers
795
Odious Numbers
781
Pangram Grep
730
Pascal’s Triangle
838
Pernicious Numbers
683
Prime Numbers
871
Quine
945
Roman to Arabic
300
Seven Segment
465
Sierpiński Triangle
455
Spelling Numbers
215
π
317
τ
295
φ
531
𝑒
370