12 Days of Christmas
217th
Abundant Numbers
175th
72nd
382nd
brainfuck
31st
233rd
Catalan Numbers
316th
Christmas Trees
581st
Collatz
403rd
Cubes
96th
Diamonds
471st
Divisors
267th
101st
296th
Emirp Numbers
544th
Evil Numbers
202nd83rd
71st42nd
550th
Fibonacci
395th126th78th144th61st106th865th
Fizz Buzz
237th
150th
53rd
Fractions
74th39th
295th
Happy Numbers
93rd
56th
253rd
Happy Numbers (Long)
146th
Leap Years
586th
Leyland Numbers
34th
180th
Look and Say
255th
Niven Numbers
77th
365th
Odious Numbers
156th
63rd43rd
465th
Pascal’s Triangle
53rd
209th
Pernicious Numbers
97th
240th
Prime Numbers
230th75th45th106th
418th
Quine
57th
Recamán
267th
Reverse Polish Notation
19th
158th
Roman to Arabic
212th
Rule 110
186th
Sierpiński Triangle
277th
Smith Numbers
152nd
Sudoku
12th
102nd
Sudoku (Fill-in)
78th
Van Eck Sequence
21st
248th
√2
358th