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"Coming Out" Sequence (Posted on 2004-08-05)

10, 11, 12, 13, 14, 15, 16, 17, 20, 22, 24, ___ , 100, 121, 10000

What's the missing number in this sequence?

See The Solution Submitted by ThoughtProvoker

Rating: 3.2500 (4 votes)

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Solution To The Problem

| Comment 5 of 6 |

The nth term of the sequence is given by the decimal number 16 written in base (17-n).
For the 12th term (missing term) note that 16 is expresssible as 31 in base 5.
Thus, the required missing term is 31.

Edited on March 11, 2007, 12:28 pm

Posted by K Sengupta on 2007-03-11 12:27:27

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