12 Days of Christmas
8th
24 Game
8th
99 Bottles of Beer
127th
Arithmetic Numbers
26th
Arrows
12th
Ascending Primes
15th
ASCII Table
34th
Catalan Numbers
35th
Christmas Trees
74th
Collatz
1st
Cubes
28th
Day of Week
1st
Diamonds
45th
Evil Numbers
64th
Evil Numbers (Long)
36th
Factorial Factorisation
9th
Farey Sequence
18th
Fibonacci
69th
Fizz Buzz
102nd
Fractions
15th
Happy Numbers
33rd
Happy Numbers (Long)
17th
Inventory Sequence
19th
Kolakoski Constant
15th
Leap Years
31st
Levenshtein Distance
9th
Leyland Numbers
31st
Niven Numbers
48th
Niven Numbers (Long)
38th
Odious Numbers
65th
Odious Numbers (Long)
37th
Pascal’s Triangle
107th42nd
Pernicious Numbers
39th
Prime Numbers
82nd
Prime Numbers (Long)
36th
Quine
1st
Recamán
28th
Rule 110
25th
Sierpiński Triangle
28th
Smith Numbers
12th
Tongue-twisters
24th
United States
20th
λ
16th
π
24th