# Quick Number Puzzle
**URL:** https://boards.straightdope.com/t/quick-number-puzzle/364240
**Category:** In My Humble Opinion
**Created:** [July 12, 2006, 9:18pm UTC](https://boards.straightdope.com/t/quick-number-puzzle/364240 "2006-07-12T21:18:20Z")
**Posts on this page:** 3
**Page:** 3
### Author:  [@Little\_Nemo](https://boards.straightdope.com/u/Little_Nemo)
#### Post date: [July 14, 2006, 4:53pm UTC](https://boards.straightdope.com/t/quick-number-puzzle/364240/41 "2006-07-14T16:53:58Z")
> [@](#):
>
> And given that that was the author’s intention, the fact that there is a second possible solution is simply an anomaly based on the random sequence they chose.
You think they happened to randomly pick a group of numbers that followed the sequence 18n+1?
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### Author:  [@rowrrbazzle](https://boards.straightdope.com/u/rowrrbazzle)
#### Post date: [July 14, 2006, 8:44pm UTC](https://boards.straightdope.com/t/quick-number-puzzle/364240/42 "2006-07-14T20:44:48Z")
> [@Little Nemo](#):
>
> There’s a difference between the palindrome solution and the mathematical solution.
>
> Consider: 19 - 37 - 55 - 73 - 91 - What’s the next number in this sequence?
>
> The palindrome spotters are going to say there is no next number; the sequence is complete. The mathematicans would say it’s an open-ended sequence and the next number is clearly 109.
Of course the solutions are different. But this palindrome spotter (with a BS in math) says you’ve now posed a different problem, and it’s obvious a palindrome is not the answer.
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### Author:  [@TJdude825](https://boards.straightdope.com/u/TJdude825)
#### Post date: [July 14, 2006, 9:05pm UTC](https://boards.straightdope.com/t/quick-number-puzzle/364240/43 "2006-07-14T21:05:14Z")
I did it Otto’s way.
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