12 Days of Christmas
60th
Abundant Numbers
54th
Abundant Numbers (Long)
32nd
Arithmetic Numbers
23rd
Christmas Trees
56th
Collatz
141st
Diamonds
147th
Divisors
33rd1st
Evil Numbers
268th
Evil Numbers (Long)
174th
Factorial Factorisation
34th
Fibonacci
185th120th
Fizz Buzz
31st
58th
Fractions
57th
Intersection
64th
Leap Years
173rd
Look and Say
119th
Niven Numbers
207th
Niven Numbers (Long)
94th
Odious Numbers
152nd
Odious Numbers (Long)
108th
Pascal’s Triangle
77th
Pernicious Numbers
158th
Prime Numbers
154th
Prime Numbers (Long)
50th
ROT13
87th
Set
45th
Smith Numbers
30th
Star Wars GPT
43rd
Tic-tac-toe
57th
λ
142nd