Abundant Numbers
60th
Abundant Numbers (Long)
34th
Arithmetic Numbers
24th
Collatz
118th
CSS Colors
148th
Divisors
1st
Emirp Numbers
118th
Evil Numbers
1st
Evil Numbers (Long)
41st
Factorial Factorisation
58th
Fibonacci
1st
Fizz Buzz
62nd
Happy Numbers
71st
Kolakoski Sequence
82nd
Leap Years
18th
ln 2
1st
Look and Say
105th
Lucky Numbers
71st
Niven Numbers
52nd
Niven Numbers (Long)
102nd
Odious Numbers
1st
Odious Numbers (Long)
89th
Ordinal Numbers
79th
Pangram Grep
45th
Pascal’s Triangle
89th
Pernicious Numbers
78th
Prime Numbers
91st
Quine
1st
Recamán
80th
Rock-paper-scissors-Spock-lizard
80th
Roman to Arabic
112th
ROT13
96th
Sierpiński Triangle
40th
Tic-tac-toe
74th
π
108th
τ
99th
√2
1st
𝑒
1st