Ch multiple 3 +2.
Row 1: Starting in the 2nd chain from hook. Sc to end of row.
Row 2: Ch3, turn. 1dc in first st. *Skip next 2 sts. 3dc in next st. Repeat from * to last 3 sts. Skip next 2sts, 2dc in last st.
Row 3: Ch2, turn. *3dc in space between the clusters. Repeat from * to last 2 dc. 1dc in ch-3.
Row 4: Ch3, turn. 1dc in first space. *3dc in space between the clusters. Repeat from * to last space. 2dc in last space.
Repeat Row 3 and Row 4.