Abundant Numbers
43rd
Abundant Numbers (Long)
106th
Arithmetic Numbers
78th
Collatz
195th
CSS Colors
116th
Divisors
16th
Emirp Numbers
19th
Evil Numbers
1st
Evil Numbers (Long)
49th
Factorial Factorisation
85th
Fibonacci
1st
Fizz Buzz
52nd
Happy Numbers
1st
Kolakoski Sequence
61st
Leap Years
22nd
ln 2
52nd
Look and Say
47th
Lucky Numbers
84th
Niven Numbers
55th
Niven Numbers (Long)
125th
Odious Numbers
1st
Odious Numbers (Long)
102nd
Ordinal Numbers
6th
Pangram Grep
31st
Pascal’s Triangle
49th
Pernicious Numbers
89th
Prime Numbers
103rd
Quine
1st
Recamán
42nd
Rock-paper-scissors-Spock-lizard
39th
Roman to Arabic
54th
ROT13
118th
Sierpiński Triangle
25th
Tic-tac-toe
96th
π
132nd
τ
117th
√2
14th
𝑒
10th