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What's the next (last) number in the following sequence?

$1,2,3,4,5,6,8,9,10,\underline{~~?~~}$

(both mathematical and non-mathematical answers are welcome)

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    $\begingroup$ oeis.org/search?q=1%2c2%2c3%2c4%2c5%2c6%2c8%2c9%2c10 $\endgroup$ – f'' Jul 3 '16 at 19:17
  • $\begingroup$ It looks to me as if OEIS doesn't contain any sequence beginning that way for which the next number is also the last (which I think is what the "(last)" is intended to mean). $\endgroup$ – Gareth McCaughan Jul 3 '16 at 23:43
  • $\begingroup$ The statement originally said What's the next number in the following sequence? (which is also the last one) and the sequence read 1,2,3,4,5,6,8,9,10,.... I hope my edit was correct. $\endgroup$ – humn Jul 3 '16 at 23:46
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    $\begingroup$ Why was this DVed? Now that I see Jonathan's answer I like it even more. $\endgroup$ – TTT Jul 4 '16 at 16:31
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    $\begingroup$ I'm sorry for my question being not too interesting in English. I'm Hungarian, so the original question was in Hungarian too. (1, 4, 5, 6, 7, 8, 10, 20, and the answer is 100) $\endgroup$ – szentsas Jul 5 '16 at 8:50
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I'd plump for

$12$

Because

It is the sequence of all positive integers, $\Bbb{N^*}$, that have $1$ syllable in English.

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Obviously 11

It is just normal counting

Seven ate nine,so this time nine ate seven so seven isn't there.

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