Abundant Numbers
51st
Abundant Numbers (Long)
28th
Arithmetic Numbers
23rd
Collatz
104th
CSS Colors
138th
Divisors
1st
Emirp Numbers
100th
Evil Numbers
1st
Evil Numbers (Long)
35th
Factorial Factorisation
43rd
Fibonacci
1st
Fizz Buzz
54th
Happy Numbers
54th
Kolakoski Sequence
71st
Leap Years
14th
ln 2
1st
Look and Say
86th
Lucky Numbers
58th
Niven Numbers
36th
Niven Numbers (Long)
87th
Odious Numbers
1st
Odious Numbers (Long)
75th
Ordinal Numbers
66th
Pangram Grep
36th
Pascal’s Triangle
74th
Pernicious Numbers
69th
Prime Numbers
74th
Quine
1st
Recamán
69th
Rock-paper-scissors-Spock-lizard
71st
Roman to Arabic
98th
ROT13
77th
Sierpiński Triangle
36th
Tic-tac-toe
59th
π
94th
τ
90th
√2
1st
𝑒
1st