12 Days of Christmas
864th
99 Bottles of Beer
109th
Abundant Numbers
76th
Christmas Trees
18th378th
Divisors
10th1st
Emirp Numbers
94th
Evil Numbers
671st
Fibonacci
1,032nd
Fizz Buzz
133rd1,461st
Fractions
406th
Happy Numbers
88th
Leap Years
419th
Morse Decoder
71st
Morse Encoder
51st
Niven Numbers
35th227th
Pangram Grep
284th
Pascalβs Triangle
572nd
Pernicious Numbers
327th
Prime Numbers
337th
Quine
95th57th
Rule 110
132nd
Seven Segment
116th
Tongue-twisters
40th
Ξ»
109th