Braingle Lite



1, 3, 6, 55, 66...

Category:Series
Submitted By:fishmed
Fun:*** (2.2)
Difficulty:**** (3.12)



What are the next three numbers in this series?

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

Answer:

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

Show Hint Hide Answer



Comments on this teaser

Show all 25 comments




Search:
Browse:

Most Popular | Hardest | Easiest




Privacy | Terms
Copyright © 2003