Abundant Numbers
55th
Abundant Numbers (Long)
32nd
Arithmetic Numbers
24th
Collatz
111th
CSS Colors
141st
Divisors
1st
Emirp Numbers
111th
Evil Numbers
1st
Evil Numbers (Long)
38th
Factorial Factorisation
51st
Fibonacci
1st
Fizz Buzz
58th
Happy Numbers
63rd
Kolakoski Sequence
75th
Leap Years
14th
ln 2
1st
Look and Say
93rd
Lucky Numbers
62nd
Niven Numbers
39th
Niven Numbers (Long)
95th
Odious Numbers
1st
Odious Numbers (Long)
81st
Ordinal Numbers
69th
Pangram Grep
42nd
Pascal’s Triangle
78th
Pernicious Numbers
77th
Prime Numbers
82nd
Quine
1st
Recamán
75th
Rock-paper-scissors-Spock-lizard
74th
Roman to Arabic
106th
ROT13
85th
Sierpiński Triangle
38th
Tic-tac-toe
64th
π
99th
τ
93rd
√2
1st
𝑒
1st