12 Days of Christmas
329th
99 Bottles of Beer
162nd
Abundant Numbers
54th
Arrows
44th
CSS Colors
51st
Diamonds
145th
Divisors
79th
Emirp Numbers
42nd
Evil Numbers
70th
112th
Fibonacci
157th
157th
Fizz Buzz
201st
1st
53rd
Happy Numbers
43rd
48th
Leap Years
152nd66th
28th
46th93rd
48th
288th
Leyland Numbers
98th
Lucky Tickets
44th
Morse Decoder
76th
Morse Encoder
88th
Niven Numbers
1st
122nd
Odious Numbers
68th
262nd
Ordinal Numbers
64th
Pangram Grep
Pascalβs Triangle
61st
Pernicious Numbers
58th
139th
Prime Numbers
1st
314th
Quine
1st25th97th1st77th24th50th115th2nd53rd29th1st1st41st114th45th36th58th39th97th
Rule 110
88th
Seven Segment
134th
Spelling Numbers
83rd
United States
Ξ»
43rd
54th
34th42nd37th127th14th
Ο
46th
Ο
46th
Ο
62nd
β2
71st
π
70th