12 Days of Christmas
55th
Abundant Numbers
50th
Abundant Numbers (Long)
27th
Arithmetic Numbers
23rd
Christmas Trees
52nd
Collatz
122nd
Diamonds
137th
Divisors
32nd1st
Evil Numbers
254th
Evil Numbers (Long)
162nd
Factorial Factorisation
28th
Fibonacci
163rd110th
Fizz Buzz
31st
54th
Fractions
50th
Intersection
56th
Leap Years
158th
Look and Say
112th
Niven Numbers
191st
Niven Numbers (Long)
82nd
Odious Numbers
140th
Odious Numbers (Long)
96th
Pascalβs Triangle
75th
Pernicious Numbers
145th
Prime Numbers
143rd
Prime Numbers (Long)
46th
ROT13
76th
Set
36th
Smith Numbers
28th
Star Wars GPT
36th
Tic-tac-toe
51st
Ξ»
133rd