99 Bottles of Beer
84th
Abundant Numbers
285th
Christmas Trees
421st
Divisors
1st
Emirp Numbers
386th
Emojify
230th
Evil Numbers
513th
Fibonacci
919th
Fizz Buzz
141st890th
Foo Fizz Buzz Bar
346th
Happy Numbers
468th
Leap Years
734th
Look and Say
143rd
Odious Numbers
734th
Pascal’s Triangle
416th
Pernicious Numbers
496th
Prime Numbers
494th
Quine
842nd
Rock-paper-scissors-Spock-lizard
143rd
π
11th124th
508th
φ
363rd
√2
533rd