12 Days of Christmas
57th
Abundant Numbers
51st
Abundant Numbers (Long)
28th
Arithmetic Numbers
23rd
Christmas Trees
53rd
Collatz
133rd
Diamonds
143rd
Divisors
33rd1st
Evil Numbers
262nd
Evil Numbers (Long)
172nd
Factorial Factorisation
29th
Fibonacci
176th115th
Fizz Buzz
31st
54th
Fractions
53rd
Intersection
59th
Leap Years
165th
Look and Say
115th
Niven Numbers
200th
Niven Numbers (Long)
87th
Odious Numbers
147th
Odious Numbers (Long)
103rd
Pascal’s Triangle
74th
Pernicious Numbers
153rd
Prime Numbers
147th
Prime Numbers (Long)
48th
ROT13
79th
Set
39th
Smith Numbers
28th
Star Wars GPT
36th
Tic-tac-toe
54th
λ
138th