Decreases for sleeve Rowan pattern

I am decreasing for a raglan sleeve using a Rowan pattern.
The pattern says to"work all raglan armhole decreases, dec 1 st at raglan armhole edge of 2nd and 3rd foll 4th rows, then on foll 7 alt rows."

I take that to mean: Dec 1 at armhole edge, knit 3 rows, decrease on 4th, knit 3 more rows then decrease one. Then knit 1row without decreasing (a pearl row), decrease one, knit one, 7 times total.

Does that make sense?

Welcome to KnittingHelp!
Those [I]are[/I] confusing. i wonder if it should be dec on the followong 2nd, 3rd and 4th rows, then on foll 7 alt rows. That would put the decreases on rows 2,3,4,6,8,10,12,14,16,18.
Can you give us a link to the pattern or a pattern name?

Yes thank you!

THE BOOK IS JUST BABY

and the sweater is called Barrie by Lisa Richards

it looks like this is the pattern. So sweet. Good luck with the rest of it.