Abundant Numbers
36th
Abundant Numbers (Long)
95th
Arithmetic Numbers
71st
Collatz
171st
CSS Colors
102nd
Divisors
1st
Emirp Numbers
15th
Evil Numbers
1st
Evil Numbers (Long)
40th
Factorial Factorisation
66th
Fibonacci
1st
Fizz Buzz
42nd
Happy Numbers
1st
Kolakoski Sequence
54th
Leap Years
15th
ln 2
45th
Look and Say
44th
Lucky Numbers
68th
Niven Numbers
41st
Niven Numbers (Long)
111th
Odious Numbers
1st
Odious Numbers (Long)
81st
Ordinal Numbers
3rd
Pangram Grep
26th
Pascal’s Triangle
45th
Pernicious Numbers
77th
Prime Numbers
83rd
Quine
1st
Recamán
38th
Rock-paper-scissors-Spock-lizard
31st
Roman to Arabic
52nd
ROT13
104th
Sierpiński Triangle
23rd
Tic-tac-toe
76th
π
111th
τ
101st
√2
1st
𝑒
1st