12 Days of Christmas
270th
Arabic to Roman
152nd
Divisors
408th
Emirp Numbers
132nd
Evil Numbers
375th
Fibonacci
137th
448th
676th
93rd
168th
75th
92nd
185th
1,713th
103rd
221st
Fizz Buzz
1,146th
Happy Numbers
157th
Leap Years
128th
100th
Morse Decoder
71st
Morse Encoder
71st
Niven Numbers
295th
Odious Numbers
295th
Pernicious Numbers
173rd
Prime Numbers
394th
Roman to Arabic
94th
Seven Segment
81st