12 Days of Christmas
167th
Abundant Numbers
58th
Arabic to Roman
107th
brainfuck
118th
Christmas Trees
213th
Divisors
330th
Emirp Numbers
106th
Evil Numbers
174th
Fibonacci
71st
376th
Fizz Buzz
154th
642nd
225th
1st129th212th
1,477th
245th
Happy Numbers
111th
Leap Years
205th
Niven Numbers
241st
Odious Numbers
151st
Pangram Grep
146th
Prime Numbers
194th
Quine
1st24th202nd102nd32nd40th287th1st1st42nd57th
72nd87th84th17th
π
88th
√2
452nd