Abundant Numbers
64th
Abundant Numbers (Long)
36th
Arithmetic Numbers
26th
Collatz
123rd
CSS Colors
151st
Divisors
1st
Emirp Numbers
121st
Evil Numbers
1st
Evil Numbers (Long)
44th
Factorial Factorisation
63rd
Fibonacci
1st
Fizz Buzz
69th
Happy Numbers
75th
Kolakoski Sequence
86th
Leap Years
18th
ln 2
1st
Look and Say
111th
Lucky Numbers
74th
Niven Numbers
54th
Niven Numbers (Long)
106th
Odious Numbers
1st
Odious Numbers (Long)
93rd
Ordinal Numbers
82nd
Pangram Grep
47th
Pascal’s Triangle
90th
Pernicious Numbers
83rd
Prime Numbers
96th
Quine
1st
Recamán
82nd
Rock-paper-scissors-Spock-lizard
84th
Roman to Arabic
115th
ROT13
97th
Sierpiński Triangle
43rd
Tic-tac-toe
78th
π
113th
τ
103rd
√2
1st
𝑒
1st