12 Days of Christmas
8th
24 Game
8th
99 Bottles of Beer
122nd
Arithmetic Numbers
22nd
Arrows
11th
Ascending Primes
12th
ASCII Table
29th
Catalan Numbers
28th
Christmas Trees
72nd
Collatz
1st
Cubes
27th
Day of Week
1st
Diamonds
40th
Evil Numbers
58th
Evil Numbers (Long)
34th
Factorial Factorisation
7th
Farey Sequence
16th
Fibonacci
58th
Fizz Buzz
100th
Fractions
14th
Happy Numbers
31st
Happy Numbers (Long)
16th
Inventory Sequence
16th
Kolakoski Constant
13th
Leap Years
23rd
Levenshtein Distance
9th
Leyland Numbers
27th
Niven Numbers
41st
Niven Numbers (Long)
34th
Odious Numbers
59th
Odious Numbers (Long)
35th
Pascal’s Triangle
92nd38th
Pernicious Numbers
34th
Prime Numbers
72nd
Prime Numbers (Long)
30th
Quine
1st
Recamán
27th
Rule 110
21st
Sierpiński Triangle
27th
Smith Numbers
10th
Tongue-twisters
23rd
United States
18th
λ
14th
π
18th