-5
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1, 2, 5, 13, ?, ?, 1 Please give explanation.

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    $\begingroup$ Is there one and only one answer to this question? $\endgroup$ – S.C. Dec 18 '15 at 7:11
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    $\begingroup$ At first it looks like every odd-numbered Fibonacci, but the 1 at the end throws that off $\endgroup$ – orp Dec 18 '15 at 13:36
  • $\begingroup$ @SeraphCheng any finite collection of numbers has an infinite amount of functions that go through all points, as such questions like these NEVER have only one answer. Some however, have very obvious answers. $\endgroup$ – DrunkWolf Dec 18 '15 at 13:56
1
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I would figure that it is simply

1,2,5,13,5,2,1

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