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Simple logic question, what is the next number and why?

11, 21, 1112, 3112, 211213, 312213, 212223, 114213, ?

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  • $\begingroup$ This is something like the 5th version of this sequence (allowing for variations for order of digits) in the last few days... did this sort of puzzle get published somewhere recently? $\endgroup$
    – Glen O
    Commented May 8, 2015 at 1:26
  • $\begingroup$ Go here at $5$:$33$, youtube.com/watch?v=r5P-f5arPXE $\endgroup$
    – Mr Pie
    Commented May 4, 2018 at 7:08

1 Answer 1

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This is a repeat of one on the front page but,

The answer is 31121314, each number is counting the quantity of numbers before it in increasing magnitude. (Three ones, one two, one three, one four).

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  • $\begingroup$ Sorry, didn't saw it on the front page. $\endgroup$
    – Skalwalker
    Commented May 7, 2015 at 23:01
  • $\begingroup$ Which question is it / no vote to close as duplicate? $\endgroup$
    – user20
    Commented May 7, 2015 at 23:06
  • $\begingroup$ I added a duplicate vote. $\endgroup$
    – Quark
    Commented May 7, 2015 at 23:11

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