12 Days of Christmas
421st
99 Bottles of Beer
598th
Christmas Trees
539th
Emirp Numbers
66th
Fibonacci
813th
Fizz Buzz
875th
Happy Numbers
64th
Intersection
218th
Levenshtein Distance
135th
Leyland Numbers
301st
Look and Say
250th
Lucky Tickets
134th
Morse Decoder
78th
Morse Encoder
45th
Niven Numbers
149th
Odious Numbers
486th
Ordinal Numbers
301st
Pangram Grep
371st
Pascal’s Triangle
295th
Pernicious Numbers
229th
Poker
Quine
72nd
Recamán
126th
Rock-paper-scissors-Spock-lizard
70th
Sierpiński Triangle
227th
United States
151st
Vampire Numbers
196th
λ
58th
π
158th
τ
130th
φ
176th
√2
226th
𝑒
156th