12 Days of Christmas
505th
99 Bottles of Beer
136th82nd
Abundant Numbers
210th
Abundant Numbers (Long)
166th
Arithmetic Numbers
121st
Catalan Numbers
250th
Christmas Trees
337th
Collatz
320th
Divisors
264th1st
Emirp Numbers
213th
Emirp Numbers (Long)
84th
Evil Numbers
411th
Evil Numbers (Long)
322nd
Farey Sequence
48th109th
Fizz Buzz
60th
Foo Fizz Buzz Bar
1st
Fractions
191st
Happy Numbers
348th
Happy Numbers (Long)
206th
ISBN
350th
Kolakoski Sequence
248th
Leap Years
378th
Lucky Tickets
84th
Niven Numbers
152nd
Niven Numbers (Long)
120th
Number Spiral
193rd
Pangram Grep
62nd
Pascal’s Triangle
1st
Pernicious Numbers
272nd
Pernicious Numbers (Long)
165th
Prime Numbers
167th
Prime Numbers (Long)
56th
Quine
75th
Reverse Polish Notation
102nd
Rule 110
51st199th
Sierpiński Triangle
338th
Tongue-twisters
382nd
Vampire Numbers
231st
Van Eck Sequence
100th
π
406th6th