12 Days of Christmas
225th
99 Bottles of Beer
178th
Abundant Numbers
335th
Collatz
38th
Cubes
69th
Diamonds
133rd
Divisors
355th
Emirp Numbers
222nd
Fibonacci
387th136th
Fizz Buzz
661st
Happy Numbers (Long)
28th
Kolakoski Constant
59th
Kolakoski Sequence
95th
Look and Say
102nd
Morse Encoder
77th15th
Niven Numbers (Long)
37th
Pascal’s Triangle
161st
Prime Numbers
425th
Repeating Decimals
8th
Rock-paper-scissors-Spock-lizard
81st10th
Sierpiński Triangle
36th
Tongue-twisters
177th23rd
Van Eck Sequence
69th16th