Nth Term Calculations: 3, 9, 19, 33... AND 7, 9, 13, 21...

[hollydunkleyx]

Hi,
Please could someone help me work out the Nth Term for the following sequences.
3, 9, 19, 33...
AND
7, 9, 13, 21...

Thank you!

 

[Deleted member 4993]

Hi,
Please could someone help me work out the Nth Term for the following sequences.
3, 9, 19, 33...
AND
7, 9, 13, 21...

Thank you!

One possible sequence could be.....
3, 9, 19, 33... = 3, (3+6), (9+10), (19 + 14)

What are your thoughts?

Please share your work with us ...even if you know it is wrong.

If you are stuck at the beginning tell us and we'll start with the definitions.

You need to read the rules of this forum. Please read the post titled "Read before Posting" at the following URL:

http://www.freemathhelp.com/forum/announcement.php?f=33