12 Days of Christmas
2,707th
Arabic to Roman
1,898th
Divisors
4,174th
Emirp Numbers
2,172nd
Evil Numbers
4,895th
Fibonacci
10,077th9,526th8,679th9,870th9,515th9,769th9,959th9,714th9,805th7,487th9,721st
Fizz Buzz
8,225th
Happy Numbers
2,312th
Leap Years
911th
3,843rd
Morse Decoder
951st
Morse Encoder
860th
Niven Numbers
3,940th
Odious Numbers
4,101st
Pernicious Numbers
3,485th
Prime Numbers
5,424th
Roman to Arabic
1,274th
Seven Segment
1,071st