perplexus.info :: Numbers : Hi there, Pascal

Hi there, Pascal (Posted on 2014-09-01)

How many odd entries are there in the 2014th row of Pascal's Triangle?

Rem: Please compare with my "Bonjour, Pascal!" of April 2014 .

See The Solution Submitted by Ady TZIDON

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Solution

Comment 2 of 2 |

Following the solution left in "Bonjour, Pascal!"

we have that number of odds = 2^(number of 1's in 2014 binary expansion) = 2^9=512

Posted by Omri on 2014-09-02 11:24:33

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