Blend Sop - steps

Hi,

There must be many easy ways to achieve this, but I don’t manage to find something efficient: I try to do something similar to the blend steps in illustrator, and have control over the number of steps.

Screen Shot 2018-12-24 at 11.30.53.png

It seems the Joint sop does this, but only with circles. I wanted to use the blend or sequence blend sop but they don’t seem to keep steps. I got closer with the copy stamp option combined with the blend sop but I don’t manage to get an equal repartition between the copies:

Is there another node for this?
Thank you for your help!