Shoutbox

quote:

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Originally posted by Reaper
What row of numbers comes next in this series?

1
11
21
1211
111221
312211
13112221

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Each number describes the previous number, so:

One
One one
Two ones
One two and one one
One one, one two and two ones
Three ones, two twos and one one
One three, one one, two twos and two ones

So the next number would be:
One one, one three, two ones, three twos and one one
or
1113213211