Shown with a cast-on count of 78 stitches.  

• Row 1 (RS): Sl1 wyib, k4, *k4, k2tog, k2, yo, k2tog, yo, k2tog, yo, k1, yo, k2, k2tog, repeat from * to last 5 sts, k5.
• Rows 2, 4, 6, 8, 10, and 12: Sl1 wyif, k4, purl to last 4 sts, k4.
• Row 3: Sl1 wyib, k4, k3, k2tog, k2, yo, k2tog, yo, k2tog, yo, k3, yo, k2, *k2tog, k2, k2tog, k2, yo, k2tog, yo, k2tog, yo, k3, yo, k2, repeat from * to last 6 sts, k2tog, k4.
• Row 5: Sl1 wyib, k4, *k2tog, k2tog, k2, yo, k2tog, yo, k2tog, yo, k5, yo, k2, repeat from * to last 5 sts, k5.
• Row 7: Sl1 wyib, k4, *k2tog, k2, yo, k1, yo, k2tog, yo, k2tog, yo, k2, k2tog, k4, repeat from * to last 5 sts, k5.
• Row 9: Sl1 wyib, k4, k2tog, k1, yo, k3, yo, k2tog, yo, k2tog, yo, k2, k2tog, k2, k2tog, *k2, yo, k3, yo, k2tog, yo, k2tog, yo, k2, k2tog, k2, k2tog, repeat from * to last 21 sts, k2, yo, k3, yo, k2tog, yo, k2tog, yo, k2, k2tog, k3, k5.
• Row 11: Sl1 wyib, k4, *k2, yo, k5, yo, k2tog, yo, k2tog, yo, k2, k2tog, k2tog, repeat from * to last 5 sts, k5.