Array with progressively increasing gap?

 From:  saltab
10307.1 
Hi All,

I was wondering if anybody knows a quick way to make an array along a path or along a direction that progressively increase the gap between the copies.

So, for instance, if I want to make 10 copies of the same object starting with a 300mm gap and progressively increase by 10%, the third piece will be spaced at 330mm, than 363, 399 and so on...

any suggestions?

Thanks.
Salvatore