Shown with a cast-on count of 77 stitches.  

• Rows 1 and 3 (RS): *K1, p1, repeat from * to last st, k1.
• Rows 2 and 4: *P1, k1, repeat from * to last st, p1.
• Row 5: K1, yo, k7, yo, k1, [yo, k1, yo, k7] 3 times, [yo, k1] twice, yo, k3, k1, k3, yo, k1, [yo, k1, yo, k7] 3 times, [yo, k1] twice, yo, k7, yo, k1 (99 sts).
• Rows 6, 8, 10, 12, 14, and 16: Purl.
• Row 7: K2, yo, ssk, k3, k2tog, yo, k2, [yo, k3, yo, ssk, k3, k2tog] 3 times, yo, k2, yo, k1, k1, k1, yo, ssk, k3, k2tog, yo, k2, [yo, k3, yo, ssk, k3, k2tog] 3 times, yo, k2, yo, k3, yo, ssk, k3, k2tog, yo, k2 (103 sts).
• Row 9: (K1, yo, k1) in next st, k2tog, yo, ssk, k1, k2tog, yo, ssk, (k1, yo, k1) in next st, k1, yo, k1, [(k1, yo, k1) in next st, k2tog, yo, ssk, k1, k2tog, yo, ssk] 3 times, (k1, yo, k1) in next st, k1, yo, k1, (k1, yo, k1) in next st, k2tog, yo, ssk, k1, k2tog, yo, ssk, (k1, yo, k1) in next st, k1, yo, k1, [(k1, yo, k1) in next st, k2tog, yo, ssk, k1, k2tog, yo, ssk] 3 times, (k1, yo, k1) in next st, k1, yo, k1, (k1, yo, k1) in next st, k2tog, yo, ssk, k1, k2tog, yo, ssk, (k1, yo, k1) in next st (117 sts).
• Row 11: K1, (k1, yo, k1) in next st, k1, k2tog, yo, sl2-k1-p2sso, yo, ssk, k1, (k1, yo, k1) in next st, k2, yo, k1, yo, k2, [(k1, yo, k1) in next st, k1, k2tog, yo, sl2-k1-p2sso, yo, ssk, k1] 3 times, (k1, yo, k1) in next st, k2, yo, k1, yo, k2, (k1, yo, k1) in next st, k1, k2tog, yo, sl2-k1-p2sso, yo, ssk, k1, (k1, yo, k1) in next st, k2, yo, k1, yo, k2, [(k1, yo, k1) in next st, k1, k2tog, yo, sl2-k1-p2sso, yo, ssk, k1] 3 times, (k1, yo, k1) in next st, k2, yo, k1, yo, k2, (k1, yo, k1) in next st, k1, k2tog, yo, sl2-k1-p2sso, yo, ssk, k1, (k1, yo, k1) in next st, k1 (135 sts).
• Row 13: Kfb, k1, (k1, yo, k1) in next st, k1, k2tog, yo, k3, yo, ssk, [k1, (k1, yo, k1) in next st, k1, k3tog, yo, k1, yo, sl1-k2tog-psso] 4 times, k1, (k1, yo, k1) in next st, k1, k2tog, yo, k3, yo, ssk, k1, (k1, yo, k1) in next st, k1, k3tog, yo, k1, yo, sl1-k2tog-psso, k1, (k1, yo, k1) in next st, k1, k2tog, yo, k3, yo, ssk, [k1, (k1, yo, k1) in next st, k1, k3tog, yo, k1, yo, sl1-k2tog-psso] 4 times, k1, (k1, yo, k1) in next st, k1, k2tog, yo, k3, yo, ssk, k1, (k1, yo, k1) in next st, k1, kfb (147 sts).
• Row 15: K2, yo, k4, k2tog, yo, k2, [yo, k3, yo, ssk, k3, k2tog] 5 times, yo, k2, [yo, k3, yo, ssk, k3, k2tog] twice, yo, k2, [yo, k3, yo, ssk, k3, k2tog] 5 times, yo, k2, yo, k3, yo, ssk, k4, yo, k2 (153 sts).