12 Days of Christmas
460th
99 Bottles of Beer
126th145th
Abundant Numbers
223rd
Abundant Numbers (Long)
158th
Arithmetic Numbers
120th
Catalan Numbers
217th
Christmas Trees
308th
Collatz
288th
Divisors
243rd100th
Emirp Numbers
219th
Emirp Numbers (Long)
85th
Evil Numbers
353rd
Evil Numbers (Long)
266th
Farey Sequence
42nd94th
Fizz Buzz
186th
Foo Fizz Buzz Bar
110th
Fractions
185th
Happy Numbers
319th
Happy Numbers (Long)
189th
ISBN
303rd
Kolakoski Sequence
226th
Leap Years
342nd
Lucky Tickets
80th
Niven Numbers
120th
Niven Numbers (Long)
110th
Number Spiral
173rd
Pangram Grep
102nd
Pascal’s Triangle
35th
Pernicious Numbers
233rd
Pernicious Numbers (Long)
136th
Prime Numbers
140th
Prime Numbers (Long)
42nd
Quine
57th
Reverse Polish Notation
102nd
Rule 110
46th192nd
Sierpiński Triangle
304th
Tongue-twisters
344th
Vampire Numbers
201st
Van Eck Sequence
84th
π
357th6th24th