Base rnd, each side: Multiple of 6 + 1 + corner sts.
Begin 6 sts to left of corner st.
Rnd 1: Ch 4 (counts as dc and ch-1), skip 1 st, *[dc in next dc, ch 1, skip 1 st]** to corner st, (dc, ch 3, dc, ch 1) in corner st, skip 1 st; rep from * around, ending last rep at **, join with slip st to 3rd ch of ch-4.
Rnd 2: Ch 4 (counts as dc and ch-1), *[dc in next dc, ch 1]** to corner space, (dc, ch 3, dc) in corner space — corner group made, ch 1; rep from * around, ending last rep at **, join with slip st to 3rd ch of ch-4.
Rnd 3: Ch 3 (counts as dc), Make Scallop, *dc in next dc, [(ch 1, dc in next dc) two times, Make Scallop, dc in next dc] to corner group, ch 1, skip 1 dc, dc in corner ch-space, Make Scallop, dc in same ch-space, ch 1, skip 1 dc, dc in next dc, Make Scallop; rep from * around, ending last rep (dc in next dc, ch 1) two times, join with slip st to top of ch-3.
