12 Days of Christmas
99 Bottles of Beer
Abundant Numbers
Christmas Trees
Cubes
Diamonds
1,481st
Divisors
Emirp Numbers
Evil Numbers
3,194th
Fibonacci
2,682nd
Fizz Buzz
10,995th
Happy Numbers
Happy Numbers (Long)
Kolakoski Constant
Kolakoski Sequence
537th
Leap Years
Leyland Numbers
Morse Decoder
Niven Numbers
Odious Numbers
Pangram Grep
Pernicious Numbers
Prime Numbers
3,465th
Quine
1st
Recamán
Rule 110
Smith Numbers
Star Wars Opening Crawl
Sudoku (Fill-in)
Vampire Numbers
Van Eck Sequence
λ
π
3,291st3,152nd2,229th3,412th2,171st2,206th1,291st3,171st2,849th2,672nd2,283rd1,676th2,656th3,405th3,351st1,554th2,927th3,334th2,086th1,751st3,383rd2,405th3,049th1,049th3,224th3,274th1,630th1,340th1,706th1,985th1,603rd
τ
φ
√2
𝑒