#### jeffsbenson

##### New member

- Joined
- Oct 13, 2017

- Messages
- 1

I am a little rusty on my math and hoping someone can help me out with a problem I am working on. Here is the gist:

How many permutations are there for the following?

-- a + b + c + d + e + f + g +h + i = 144

-- there are 16 possible choices for a through I

-- repetition is allowed (i.e. 16 + 16 + ....)

-- Must know the number of permutations as (16 + 15 is not the same as 15 + 16 for these purposes)

I think this is a stars and bars problem but am not certain.

Thank you for your help!

Jeff