12 Days of Christmas
7th
99 Bottles of Beer
6th
Abundant Numbers
5th
Arrows
3rd
ASCII Table
5th
Catalan Numbers
3rd
Christmas Trees
4th
Collatz
5th
Diamonds
2nd
Divisors
8th
Emirp Numbers
5th
Emojify
5th
Evil Numbers
7th
Fibonacci
20th
Fizz Buzz
72nd
Foo Fizz Buzz Bar
3rd
Fractions
2nd
Happy Numbers
4th
Happy Numbers (Long)
4th
Hexdump
3rd
Leap Years
7th
Leyland Numbers
3rd
Look and Say
3rd
Lucky Tickets
2nd
Niven Numbers
4th
Number Spiral
3rd
Odious Numbers
6th
Ordinal Numbers
6th
Pangram Grep
4th
Pascal’s Triangle
4th
Pernicious Numbers
4th
Prime Numbers
8th
Prime Numbers (Long)
4th
Recamán
4th
Rule 110
2nd
Sierpiński Triangle
2nd
Smith Numbers
3rd
Tongue-twisters
5th
United States
3rd
Vampire Numbers
4th
Van Eck Sequence
2nd
Zodiac Signs
2nd
λ
7th
π
7th
τ
6th
φ
5th
√2
3rd
𝑒
3rd