12 Days of Christmas
326th
Arabic to Roman
193rd
Divisors
470th
Emirp Numbers
156th
Evil Numbers
440th
Fibonacci
180th594th806th126th226th91st120th227th2,103rd136th273rd
Fizz Buzz
1,323rd
Happy Numbers
190th
Leap Years
163rd
114th
Morse Decoder
91st
Morse Encoder
90th
Niven Numbers
353rd
Odious Numbers
341st
Pernicious Numbers
206th
Prime Numbers
460th
Roman to Arabic
119th
Seven Segment
97th