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Posers and Puzzles

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2,8,18,32,??

Also, 'splain your answer!

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I wont tell the next number but the number after the next is 86

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deleted...I assume you're not looking for the obvious relation between yer numbers

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My answer is

50

Reasoning:
n(0) = 2; n(i) = 2+ n(i-1) + 4*i


*edit* quoting [hidden] tags defeats the purpose of them

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Originally posted by forkedknight
My answer is [hidden]50[/hidden]
Reasoning: [hidden]n(0) = 2; n(i) = 2+ n(i-1) + 4*i[/hidden]

*edit* quoting [hidden] tags defeats the purpose of them
yep, but what is that in the real world?

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Originally posted by forkedknight
I believe you are incorrect.

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Originally posted by sonhouse
yep, but what is that in the real world?
Also
2x^2

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This poser is not about math folks...unless I'm mistaken.

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Originally posted by sonhouse
2,8,18,32,??

Also, 'splain your answer!
Arent you just doubling squares?

In the real world that could be the areas of rectangles whose length is twice the width. ??????????

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Originally posted by wolfgang59
Arent you just doubling squares?

In the real world that could be the areas of rectangles whose length is twice the width. ??????????
No no no. The next answer is NOT 50.

2,8,18,32,??,86

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In fact, here is a different but related sequence that may help some folks:

4,20,40,84,??,222

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You may well be right about what's intended, but when someone comes up with a simple mathematical relation (doubling squares) that works it's a bit difficult to say it's "wrong".

It's a fundamental problem with this sort of puzzle, in my opinion.

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Originally posted by mtthw
You may well be right about what's intended, but when someone comes up with a simple mathematical relation (doubling squares) that works it's a bit difficult to say it's "wrong".

It's a fundamental problem with this sort of puzzle, in my opinion.
You are of course correct. Those mathematical explanations are correct. However there is another answer which is not based on a simple mathematical function.

I apologize forkedknight.

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Originally posted by sonhouse
2,8,18,32,??

Also, 'splain your answer!
Anything to do with electron shells?

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Originally posted by wolfgang59
Anything to do with electron shells?
Could be, it's for sure not associated with Oyster shells🙂