12 Days of Christmas
160th
99 Bottles of Beer
326th
Arabic to Roman
182nd
Christmas Trees
324th
Cubes
83rd
Diamonds
256th
Divisors
394th
Emirp Numbers
331st
Evil Numbers
737th
Fibonacci
1,059th
Fizz Buzz
634th
2,198th
319th
Happy Numbers
358th
Leap Years
316th
Morse Decoder
160th
Morse Encoder
170th
Niven Numbers
479th
Odious Numbers
510th
Ordinal Numbers
385th
Pangram Grep
421st
Pascal’s Triangle
285th
Pernicious Numbers
325th
Prime Numbers
686th
Quine
223rd
Rock-paper-scissors-Spock-lizard
74th
Roman to Arabic
209th
Rule 110
114th
Seven Segment
166th
Spelling Numbers
127th
Sudoku
85th
Ten-pin Bowling
123rd
λ
61st99th37th39th52nd142nd40th32nd
π
381st
τ
258th
φ
51st
352nd
46th
√2
63rd
517th
44th
𝑒
75th
61st399th60th66th