Prep Row: Work 2 dc in 4th ch from hook, skip 3 ch, 1 sc next ch, *ch 3, 1 dc in each of the next 3 chs, skip next 3 ch, sc in next ch; rep from * across, turn.
Row 1: Ch 3, 2 dc in first st, *skip next 3 dc, [1 sc, ch 3, 3 dc] in the next ch-3 space, skip next st; rep from * across, ending skip last 2 sts, sc in the top of turning ch.</li?
Repeat row 1 until you have reached your desired length.