12 Days of Christmas
99 Bottles of Beer
Abundant Numbers
397th
Abundant Numbers (Long)
Arabic to Roman
Arrows
brainfuck
Catalan Numbers
Christmas Trees
Collatz
Diamonds
Divisors
Emirp Numbers
822nd
Emojify
Evil Numbers
1,820th
Fibonacci
5,685th
4,047th
4,541st
6,506th
920th
Fizz Buzz
5,206th
Foo Fizz Buzz Bar
Fractions
Happy Numbers
1,579th
Happy Numbers (Long)
ISBN
Kolakoski Sequence
Leap Years
2,071st
Levenshtein Distance
Leyland Numbers
Look and Say
Niven Numbers
2,358th
Niven Numbers (Long)
Odious Numbers
1,695th
Ordinal Numbers
Pangram Grep
Pascal’s Triangle
Pernicious Numbers
1,738th
Prime Numbers
1,668th
Prime Numbers (Long)
Quine
Recamán
695th
Rock-paper-scissors-Spock-lizard
Roman to Arabic
Rule 110
Smith Numbers
Spelling Numbers
Tongue-twisters
Vampire Numbers
Van Eck Sequence
π