12 Days of Christmas
999th
Abundant Numbers
281st
brainfuck
264th
Christmas Trees
23rd
97th
Cubes
142nd
Diamonds
83rd
Divisors
52nd53rd37th1st34th63rd
Emirp Numbers
90th
Evil Numbers
81st
620th
Fibonacci
14th
192nd129th46th
Fizz Buzz
888th
151st
Happy Numbers
306th
Leap Years
292nd
Niven Numbers
284th
Odious Numbers
78th
522nd
Ordinal Numbers
59th
231st
Pangram Grep
49th
Pascal’s Triangle
40th49th
336th
Pernicious Numbers
336th
Prime Numbers
95th
338th
Quine
77th
Roman to Arabic
82nd
Rule 110
111th
Seven Segment
110th
Sierpiński Triangle
125th
Sudoku
9th
√2
231st
𝑒
162nd