12 Days of Christmas
1,051st
99 Bottles of Beer
120th
Abundant Numbers
92nd
Christmas Trees
21st456th
Divisors
12th1st
Emirp Numbers
123rd
Evil Numbers
767th
Fibonacci
1,175th
Fizz Buzz
148th1,601st
Fractions
483rd
Happy Numbers
119th
Leap Years
489th
Morse Decoder
99th
Morse Encoder
77th
Niven Numbers
43rd270th
Pangram Grep
335th
Pascal’s Triangle
646th
Pernicious Numbers
385th
Prime Numbers
400th
Quine
109th85th
Rule 110
159th
Seven Segment
146th
Tongue-twisters
46th
λ
137th