12 Days of Christmas
230th
99 Bottles of Beer
178th
Abundant Numbers
343rd
Collatz
38th
Cubes
70th
Diamonds
137th
Divisors
361st
Emirp Numbers
225th
Fibonacci
397th140th
Fizz Buzz
671st
Happy Numbers (Long)
28th
Kolakoski Constant
61st
Kolakoski Sequence
97th
Look and Say
103rd
Morse Encoder
79th15th
Niven Numbers (Long)
37th
Pascal’s Triangle
162nd
Prime Numbers
432nd
Repeating Decimals
8th
Rock-paper-scissors-Spock-lizard
81st10th
Sierpiński Triangle
38th
Tongue-twisters
187th23rd
Van Eck Sequence
71st17th