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Published in Brain Teasers

What are the next three numbers in this series?

1, 3, 6, 55, 66, 171, 595, 666, 3003, 5995, ?, ?, ?


Solution:

8778, 15051, 66066
These are the 1st 13 palindromic triangular numbers.

Today's brain teaser courtesy of Braingle.com.

 

 

 

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