12 Days of Christmas
308th
Arabic to Roman
181st
Divisors
449th
Emirp Numbers
145th
Evil Numbers
413th
Fibonacci
162nd530th759th114th204th84th106th215th1,959th114th249th
Fizz Buzz
1,269th
Happy Numbers
181st
Leap Years
142nd
109th
Morse Decoder
85th
Morse Encoder
83rd
Niven Numbers
328th
Odious Numbers
324th
Pernicious Numbers
195th
Prime Numbers
433rd
Roman to Arabic
111th
Seven Segment
90th