12 Days of Christmas
99 Bottles of Beer
Abundant Numbers
Arabic to Roman
brainfuck
Catalan Numbers
Catalan’s Constant
Christmas Trees
CSS Colors
12th93rd7th
Cubes
5th81st
Diamonds
Divisors
Emirp Numbers
Emojify
6th50th4th
Evil Numbers
26th108th35th
Fibonacci
84th148th149th43rd
Fizz Buzz
75th49th140th38th
Foo Fizz Buzz Bar
Fractions
Happy Numbers
Intersection
8th160th
Jacobi Symbol
Kolakoski Constant
Kolakoski Sequence
17th199th
Leap Years
19th95th17th
Levenshtein Distance
7th87th6th
Leyland Numbers
Look and Say
Lucky Tickets
5th74th8th
Morse Encoder
Niven Numbers
26th177th31st
Niven Numbers (Long)
Odious Numbers
24th78th33rd
Ordinal Numbers
11th142nd17th
Pangram Grep
Pascal’s Triangle
Pernicious Numbers
38th278th40th
Prime Numbers
Prime Numbers (Long)
24th139th
Quine
Recamán
7th59th8th
Rock-paper-scissors-Spock-lizard
Roman to Arabic
Rule 110
Seven Segment
Sierpiński Triangle
Spelling Numbers
Sudoku
Tongue-twisters
United States
9th9th2nd
Vampire Numbers
5th138th10th
Van Eck Sequence
λ
7th32nd9th
π
5th53rd
τ
5th49th
φ
4th89th10th
√2
1st98th
𝑒
13th115th16th