12 Days of Christmas
726
99 Bottles of Beer
469
Abundant Numbers
697
Arrows
348
Christmas Trees
439
Diamonds
327
Divisors
738
Emirp Numbers
541
Evil Numbers
785
Fibonacci
934
Fizz Buzz
633
Happy Numbers
418
Intersection
287
Leap Years
730
Leyland Numbers
644
Niven Numbers
593
Odious Numbers
783
Pangram Grep
824
Pascal’s Triangle
470
Pernicious Numbers
686
Prime Numbers
713
Seven Segment
365
Sierpiński Triangle
102
π
278
τ
269
φ
511
𝑒
499