12 Days of Christmas
215th
99 Bottles of Beer
186th
Abundant Numbers
309th
Collatz
Cubes
64th
Diamonds
125th
Divisors
336th
Emirp Numbers
203rd
Fibonacci
359th
128th
Fizz Buzz
617th
Happy Numbers (Long)
Kolakoski Constant
53rd
Kolakoski Sequence
85th
Look and Say
89th
Morse Encoder
77th
14th
Niven Numbers (Long)
Pascal’s Triangle
147th
Prime Numbers
401st
Repeating Decimals
Rock-paper-scissors-Spock-lizard
75th
8th
Sierpiński Triangle
Tongue-twisters
163rd
20th
Van Eck Sequence
61st
15th