12 Days of Christmas
238th
99 Bottles of Beer
195th
Abundant Numbers
335th
Collatz
38th
Cubes
73rd
Diamonds
135th
Divisors
356th
Emirp Numbers
223rd
Fibonacci
387th136th
Fizz Buzz
661st
Happy Numbers (Long)
28th
Kolakoski Constant
58th
Kolakoski Sequence
95th
Look and Say
102nd
Morse Encoder
81st15th
Niven Numbers (Long)
37th
Pascal’s Triangle
158th
Prime Numbers
423rd
Repeating Decimals
8th
Rock-paper-scissors-Spock-lizard
82nd9th
Sierpiński Triangle
36th
Tongue-twisters
178th23rd
Van Eck Sequence
69th16th