12 Days of Christmas
225th
99 Bottles of Beer
177th
Abundant Numbers
335th
Collatz
38th
Cubes
68th
Diamonds
133rd
Divisors
356th
Emirp Numbers
221st
Fibonacci
386th135th
Fizz Buzz
660th
Happy Numbers (Long)
28th
Kolakoski Constant
58th
Kolakoski Sequence
95th
Look and Say
101st
Morse Encoder
77th15th
Niven Numbers (Long)
37th
Pascal’s Triangle
157th
Prime Numbers
423rd
Repeating Decimals
8th
Rock-paper-scissors-Spock-lizard
81st10th
Sierpiński Triangle
36th
Tongue-twisters
178th23rd
Van Eck Sequence
69th16th