12 Days of Christmas
99 Bottles of Beer
Abundant Numbers
Arabic to Roman
brainfuck
Catalan Numbers
Catalan’s Constant
Christmas Trees
CSS Colors
12th108th10th
Cubes
5th101st
Diamonds
Divisors
Emirp Numbers
Emojify
5th38th3rd
Evil Numbers
25th108th34th
Fibonacci
91st148th150th43rd
Fizz Buzz
75th177th139th37th
Foo Fizz Buzz Bar
Fractions
Happy Numbers
Intersection
8th173rd
Jacobi Symbol
Kolakoski Constant
Kolakoski Sequence
17th201st
Leap Years
22nd93rd16th
Levenshtein Distance
7th99th6th
Leyland Numbers
Look and Say
Lucky Tickets
5th86th8th
Morse Encoder
Niven Numbers
25th174th31st
Niven Numbers (Long)
Odious Numbers
23rd79th32nd
Ordinal Numbers
11th163rd17th
Pangram Grep
Pascal’s Triangle
Pernicious Numbers
37th277th39th
Prime Numbers
Prime Numbers (Long)
23rd134th
Quine
Recamán
7th94th7th
Rock-paper-scissors-Spock-lizard
Roman to Arabic
Rule 110
Seven Segment
Sierpiński Triangle
Spelling Numbers
Sudoku
Tongue-twisters
United States
9th40th3rd
Vampire Numbers
9th141st11th
Van Eck Sequence
λ
11th56th13th
π
5th60th
τ
5th55th
φ
8th91st12th
√2
16th110th
𝑒
13th132nd16th