12 Days of Christmas
28th37th
46th
99 Bottles of Beer
38th50th
28th
Abundant Numbers
40th61st
58th
Arabic to Roman
60th
23rd
brainfuck
32nd
20th
Christmas Trees
50th87th
19th
Cubes
35th
15th
Diamonds
37th51st
31st
Divisors
41st105th
140th
Emirp Numbers
41st42nd
38th
Evil Numbers
44th143rd
68th
53rd
Fibonacci
74th256th
124th
98th123rd
Fizz Buzz
88th107th32nd99th211th67th515th1st115th240th143rd157th584th87th284th
Happy Numbers
37th75th
35th
ISBN
63rd
Leap Years
37th75th
102nd
Leyland Numbers
87th
Look and Say
138th
Lucky Tickets
19th
37th
Morse Decoder
14th
Morse Encoder
14th
Niven Numbers
39th79th
1st
40th
Odious Numbers
38th117th
58th
48th
Ordinal Numbers
53rd
45th
Pangram Grep
52nd
139th
Pascal’s Triangle
31st85th
64th
Pernicious Numbers
41st77th
49th
Poker
11th
Prime Numbers
58th46th
91st
53rd
Prime Numbers (Long)
45th
56th
Quine
1st
30th1st123rd47th
184th84th122nd81st108th652nd83rd110th
Rock-paper-scissors-Spock-lizard
65th
Roman to Arabic
45th
Rule 110
44th
48th
Seven Segment
39th
25th
Sierpiński Triangle
58th
56th
Spelling Numbers
14th
13th
Sudoku
8th
10th
Ten-pin Bowling
24th
Tongue-twisters
49th
United States
69th
λ
37th35th
12th
π
38th28th
39th
38th
τ
33rd19th
27th
35th
φ
33rd19th
1st
33rd
√2
34th23rd
16th
𝑒
36th32nd
44th
34th