What 5-letter word does this sequence represent?

      1000                   1000
       1000                 1000
        1000               1000
          999             999 
           999           999
             100       100
                1 1 1 1 
  • 5
    $\begingroup$ rot13(ZVZVP) comes to mind, but doesn't explain quite enough. $\endgroup$
    – aschepler
    Commented Oct 29, 2023 at 13:36
  • $\begingroup$ @aschepler I see how you might got there, but no, not the answer I'm looking for. $\endgroup$ Commented Oct 29, 2023 at 13:51

2 Answers 2


The answer is:


The image shows a top-down view of the teeth in the lower jaw. If the numbers are represented as Roman numerals, they identify the type of each tooth:

I is for incisor;
C is for canine and
M is for molar.

And the 999? Those are pre-molars, labelled as "one before molars", that is as 1000 − 1.

  • 1
    $\begingroup$ This was my first thought, though I couldn't make the connection. $\endgroup$ Commented Oct 30, 2023 at 6:04
  • 1
    $\begingroup$ Good job! This is the correct answer, and you explained it as intended. $\endgroup$ Commented Oct 30, 2023 at 9:57

To me, this sounds like

a musical note

A "symmetrical sequence" ought to produce a palindrome.
I can't quite make it work, but it seems like "ones in ems".

Also, the shape suggests the minimum of a graph.
And, a minim is called a 'half note' and half a sine wave (a perfect tone) is shown.

  • 1
    $\begingroup$ Nice attempt, but no this is not on the right track. $\endgroup$ Commented Oct 29, 2023 at 18:29

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