12 Days of Christmas
341st
Abundant Numbers
204th
89th
490th
brainfuck
35th
300th
Catalan Numbers
386th
Christmas Trees
683rd
Collatz
526th
Cubes
144th
Diamonds
553rd
Divisors
302nd
117th
372nd
Emirp Numbers
619th
Evil Numbers
236th101st
79th64th
647th
Fibonacci
464th167th101st162nd118th127th1,005th
Fizz Buzz
268th
161st
238th
Fractions
90th47th
380th
Happy Numbers
103rd
62nd
322nd
Happy Numbers (Long)
204th
Leap Years
690th
Leyland Numbers
40th
238th
Look and Say
319th
Niven Numbers
86th
441st
Odious Numbers
183rd
68th63rd
545th
Pascal’s Triangle
59th
264th
Pernicious Numbers
123rd
305th
Prime Numbers
266th96th52nd121st
508th
Quine
92nd
Recamán
326th
Reverse Polish Notation
20th
209th
Roman to Arabic
259th
Rule 110
232nd
Sierpiński Triangle
327th
Smith Numbers
197th
Sudoku
12th
143rd
Sudoku (Fill-in)
110th
Van Eck Sequence
21st
301st
√2
439th