On the first couple rows, there won't be any/many sts in the middle. So it goes like this for the first few rows-
R 1, kfb, kfb, k
R 3, kfb k2, kfb k1
R 5, kfb k4, kfb k1 and so on. As you get more sts in the middle the increases will be on both edges.
sue- knitting heretic