Shown with a cast-on count of 43 stitches.  

• Row 59 (RS): K1, (k1, yo, k1) in next st, k1, yo, ssk, k1, k2tog, [yo, kfb, yo, ssk, k1, k2tog] twice, yo, kfb, yo, k1 tbl, yo, kfb, yo, [ssk, k1, k2tog, yo, kfb, yo] twice, ssk, k1, k2tog, yo, k1, (k1, yo, k1) in next st, k1 (55 sts).
• Rows 60, 62, 64, 66, 68, and 70: Purl.
• Row 61: K1, (k1, yo, k1) in next st, k4, yo, sl1-k2tog-psso, [yo, k4, yo, sl1-k2tog-psso] twice, yo, k4, yo, k1 tbl, yo, k4, yo, [sl1-k2tog-psso, yo, k4, yo] twice, sl1-k2tog-psso, yo, k4, (k1, yo, k1) in next st, k1 (61 sts).
• Row 63: K1, (k1, yo, k1) in next st, k6, k2tog, [yo, k5, k2tog] twice, yo, k6, yo, k1 tbl, yo, k6, yo, [ssk, k5, yo] twice, ssk, k6, (k1, yo, k1) in next st, k1 (67 sts).
• Row 65: K1, (k1, yo, k1) in next st, k9, [k7] twice, k8, yo, k1 tbl, yo, k8, [k7] twice, k9, (k1, yo, k1) in next st, k1 (73 sts).
• Row 67: K1, (k1, yo, k1) in next st, k11, [k7] twice, k9, yo, k1 tbl, yo, k9, [k7] twice, k11, (k1, yo, k1) in next st, k1 (79 sts).
• Row 69: K1, (k1, yo, k1) in next st, k13, [k7] twice, k10, yo, k1 tbl, yo, k10, [k7] twice, k13, (k1, yo, k1) in next st, k1 (85 sts).