12 Days of Christmas
556
99 Bottles of Beer
665
Abundant Numbers
753
Arabic to Roman
482
Christmas Trees
783
Divisors
884
Emirp Numbers
524
Evil Numbers
642
Fibonacci
940
Fizz Buzz
782
Foo Fizz Buzz Bar
731
Happy Numbers
547
Leap Years
826
Niven Numbers
906
Odious Numbers
655
Ordinal Numbers
665
Pangram Grep
779
Pascal’s Triangle
606
Pernicious Numbers
652
Prime Numbers
719
Roman to Arabic
667
Seven Segment
452
Spelling Numbers
United States
246
λ
214
π
138
τ
136
φ
100
√2
85
𝑒
120