12 Days of Christmas
2,871st
99 Bottles of Beer
2,816th
Abundant Numbers
3,860th
3,885th
Arabic to Roman
1,654th
Christmas Trees
2,594th
Cubes
1,059th
Diamonds
1,668th
Divisors
4,489th4,547th4,760th
Emirp Numbers
2,863rd
2,700th
Evil Numbers
4,672nd
4,445th
Fibonacci
8,048th
8,777th
Fizz Buzz
12,164th9,537th12,407th
Happy Numbers
2,891st2,874th2,886th
Leap Years
4,092nd3,381st3,230th
Morse Decoder
815th803rd
Morse Encoder
921st
Niven Numbers
3,784th3,753rd3,675th
Odious Numbers
3,744th3,669th3,674th
Ordinal Numbers
1,715th1,707th
Pangram Grep
2,310th2,359th
Pascal’s Triangle
2,290th2,304th
Pernicious Numbers
3,001st2,971st
Prime Numbers
5,002nd4,996th5,025th
Rock-paper-scissors-Spock-lizard
954th
Roman to Arabic
1,277th
Rule 110
1,042nd1,035th
Seven Segment
1,336th1,284th