12 Days of Christmas
101st
Abundant Numbers
317th
brainfuck
271st
Christmas Trees
21st
142nd
Cubes
162nd
Diamonds
112th
Divisors
52nd53rd37th118th48th60th
Emirp Numbers
152nd
Evil Numbers
81st
610th
Fibonacci
51st
187th129th47th
Fizz Buzz
901st
147th
Happy Numbers
116th
Leap Years
294th
Niven Numbers
276th
Odious Numbers
77th
514th
Ordinal Numbers
58th
244th
Pangram Grep
51st
Pascal’s Triangle
40th49th
341st
Pernicious Numbers
329th
Prime Numbers
92nd
329th
Quine
72nd
Roman to Arabic
100th
Rule 110
129th
Seven Segment
140th
Sierpiński Triangle
140th
Sudoku
13th
√2
254th
𝑒
171st