Abundant Numbers
47th
Abundant Numbers (Long)
26th
Collatz
113th
CSS Colors
126th
Divisors
1st
Emirp Numbers
94th
Evil Numbers
111th
Evil Numbers (Long)
32nd
Fibonacci
1st
Fizz Buzz
52nd
Happy Numbers
46th
Kolakoski Sequence
110th
Leap Years
12th
ln 2
49th
Look and Say
76th
Lucky Numbers
57th
Niven Numbers
31st
Niven Numbers (Long)
73rd
Odious Numbers
81st
Odious Numbers (Long)
65th
Ordinal Numbers
62nd
Pangram Grep
30th
Pascal’s Triangle
67th
Pernicious Numbers
61st
Prime Numbers
65th
Quine
1st
Recamán
62nd
Rock-paper-scissors-Spock-lizard
67th
Roman to Arabic
90th
Sierpiński Triangle
31st
Tic-tac-toe
48th
π
128th
τ
111th
√2
1st
𝑒
1st