Abundant Numbers (Long)
47th
Ascending Primes
33rd
Collatz
42nd
Diamonds
52nd
Emirp Numbers
49th
Factorial Factorisation
27th
Fizz Buzz
149th
Foo Fizz Buzz Bar
50th
Intersection
29th
ISBN
31st
Leyland Numbers
11th45th
Mandelbrot
21st
Niven Numbers
90th
Partition Numbers
34th
Pernicious Numbers (Long)
42nd
Reverse Polish Notation
20th
Time Distance
24th
Tower of Hanoi
28th
Trinomial Triangle
30th
√2
44th
𝑒
21st