12 Days of Christmas
141st
99 Bottles of Beer
27th
Abundant Numbers
249th
Catalan’s Constant
34th
CSS Colors
31st
Cubes
8th
62nd
Diamonds
127th
Divisors
407th
Emirp Numbers
52nd
Emojify
30th
Evil Numbers
296th
Fibonacci
515th
Fizz Buzz
39th
20th
65th
174th
350th
30th
1st
Foo Fizz Buzz Bar
233rd
Happy Numbers
142nd
Happy Numbers (Long)
81st
Kolakoski Constant
35th
Kolakoski Sequence
94th
Leap Years
184th
Levenshtein Distance
53rd
Leyland Numbers
93rd
Look and Say
68th
Morse Decoder
30th
Morse Encoder
53rd
Niven Numbers
244th
Odious Numbers
261st
Pascal’s Triangle
191st
Pernicious Numbers
138th
Poker
37th
Prime Numbers
247th
Prime Numbers (Long)
60th
143rd
37th
Quine
1st
Recamán
104th
Rock-paper-scissors-Spock-lizard
85th
Sierpiński Triangle
52nd
Smith Numbers
49th
Spelling Numbers
59th
Tongue-twisters
126th
United States
67th
Vampire Numbers
43rd
Van Eck Sequence
79th
λ
59th
π
57th
τ
72nd
φ
59th
√2
67th
𝑒
67th