[ Sequences ]

Continue the sequence of numbers: 1, 11, 21, 1112, 3112, 211213, 312213, 212223, 114213...

#
In each subsequent number, it is recorded how many ones are in the previous number, then how many twos, how many threes, and so on. Thus, in the fourth number, it is recorded that the third number contains three ones and one two. Thus, in the last ninth number, it is recorded that the eighth number contains one one, four twos, and one three. The next tenth number will describe the ninth number: 31121314.

Send a comment