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How many of the first 100 rows contain at least one even entry and no odd entries other than 

Guest Oct 29, 2017
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3+0 Answers

 #1
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The first 100 rows of what  ????

 

 

cool cool cool

CPhill  Oct 29, 2017
 #2
avatar+317 
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If you mean one:

 

You could find help here:

 

http://web2.0calc.com/questions/the-first-six-rows-of-pascal-s-triangle-are-shown-below-beginning-with-row-zero-except-for-the-nbsp-nbsp-at-each-end-row-nbsp-nbsp-cons

 

I have another method doing it though:

 

Rows 3, 5, 9, 17.. all follow this pattern.

 

We could rewrite these numbers as 2^1+1, 2^2+1, 2^3+1...the largest row that follows this pattern is 2^6+1 or 65.

 

There are 6 numbers in this pattern.

supermanaccz  Oct 29, 2017
 #3
avatar+317 
0

I think he means one, because it is an AOPS problem.

supermanaccz  Oct 29, 2017

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