12 Days of Christmas
63rd
Abundant Numbers
56th
Abundant Numbers (Long)
33rd
Arithmetic Numbers
24th
Christmas Trees
58th
Collatz
144th
Diamonds
150th
Divisors
33rd1st
Evil Numbers
275th
Evil Numbers (Long)
178th
Factorial Factorisation
34th
Fibonacci
187th121st
Fizz Buzz
31st
58th
Fractions
59th
Intersection
66th
Leap Years
174th
Look and Say
129th
Niven Numbers
213th
Niven Numbers (Long)
98th
Odious Numbers
154th
Odious Numbers (Long)
109th
Pascal’s Triangle
79th
Pernicious Numbers
164th
Prime Numbers
160th
Prime Numbers (Long)
52nd
ROT13
91st
Set
48th
Smith Numbers
31st
Star Wars GPT
48th
Tic-tac-toe
62nd
λ
142nd