12 Days of Christmas
56th
Abundant Numbers
51st
Abundant Numbers (Long)
28th
Arithmetic Numbers
23rd
Christmas Trees
53rd
Collatz
131st
Diamonds
143rd
Divisors
33rd1st
Evil Numbers
259th
Evil Numbers (Long)
169th
Factorial Factorisation
29th
Fibonacci
173rd113th
Fizz Buzz
31st
54th
Fractions
53rd
Intersection
56th
Leap Years
161st
Look and Say
112th
Niven Numbers
198th
Niven Numbers (Long)
86th
Odious Numbers
145th
Odious Numbers (Long)
100th
Pascal’s Triangle
75th
Pernicious Numbers
149th
Prime Numbers
146th
Prime Numbers (Long)
48th
ROT13
78th
Set
39th
Smith Numbers
28th
Star Wars GPT
36th
Tic-tac-toe
53rd
λ
139th