12 Days of Christmas
222nd
Abundant Numbers
176th
72nd
390th
brainfuck
31st
238th
Catalan Numbers
323rd
Christmas Trees
598th
Collatz
416th
Cubes
97th
Diamonds
481st
Divisors
269th
102nd
298th
Emirp Numbers
552nd
Evil Numbers
203rd83rd
71st43rd
556th
Fibonacci
401st131st80th146th62nd107th873rd
Fizz Buzz
238th
152nd
53rd
Fractions
75th40th
303rd
Happy Numbers
93rd
56th
258th
Happy Numbers (Long)
149th
Leap Years
597th
Leyland Numbers
34th
184th
Look and Say
259th
Niven Numbers
77th
373rd
Odious Numbers
158th
63rd43rd
471st
Pascal’s Triangle
53rd
212th
Pernicious Numbers
103rd
245th
Prime Numbers
232nd76th45th106th
423rd
Quine
58th
Recamán
272nd
Reverse Polish Notation
19th
160th
Roman to Arabic
216th
Rule 110
190th
Sierpiński Triangle
282nd
Smith Numbers
152nd
Sudoku
12th
108th
Sudoku (Fill-in)
80th
Van Eck Sequence
21st
253rd
√2
366th