Shown with a cast-on count of 41 stitches.  

• Row 1 (RS): *Ssk, k4, yo, p1, yo, k4, k2tog, p1, repeat from * to last 13 sts, ssk, k4, yo, p1, yo, k4, k2tog.
• Rows 2, 4, 12, and 14: P6, k1, p6, *k1, p6, k1, p6, repeat from *.
• Row 3: *Ssk, k3, yo, k1, p1, k1, yo, k3, k2tog, p1, repeat from * to last 13 sts, ssk, k3, yo, k1, p1, k1, yo, k3, k2tog.
• Row 5: *Ssk, k2, yo, k2tog, yo, p1, yo, ssk, yo, k2, k2tog, p1, repeat from * to last 13 sts, ssk, k2, yo, k2tog, yo, p1, yo, ssk, yo, k2, k2tog.
• Rows 6, 8, and 10: P3, k1, p2, k1, p2, k1, p3, *k1, p3, k1, p2, k1, p2, k1, p3, repeat from *.
• Row 7: *Ssk, k1, yo, p1, yo, ssk, p1, k2tog, yo, p1, yo, k1, k2tog, p1, repeat from * to last 13 sts, ssk, k1, yo, p1, yo, ssk, p1, k2tog, yo, p1, yo, k1, k2tog.
• Row 9: *Ssk, k0, yo, k1, p1, k2tog, yo, p1, yo, ssk, p1, k1, yo, k0, k2tog, p1, repeat from * to last 13 sts, ssk, k0, yo, k1, p1, k2tog, yo, p1, yo, ssk, p1, k1, yo, k0, k2tog.
• Row 11: *Yo, k4, k2tog, p1, ssk, k4, yo, p1, repeat from * to last 13 sts, yo, k4, k2tog, p1, ssk, k4, yo.
• Row 13: *K1, yo, k3, k2tog, p1, ssk, k3, yo, k1, p1, repeat from * to last 13 sts, k1, yo, k3, k2tog, p1, ssk, k3, yo, k1.
• Row 15: *Yo, ssk, yo, k2, k2tog, p1, ssk, k2, yo, k2tog, yo, p1, repeat from * to last 13 sts, yo, ssk, yo, k2, k2tog, p1, ssk, k2, yo, k2tog, yo.
• Rows 16, 18, and 20: P2, k1, p3, k1, p3, k1, p2, *k1, p2, k1, p3, k1, p3, k1, p2, repeat from *.
• Row 17: *K2tog, yo, p1, yo, k1, k2tog, p1, ssk, k1, yo, p1, yo, ssk, p1, repeat from * to last 13 sts, k2tog, yo, p1, yo, k1, k2tog, p1, ssk, k1, yo, p1, yo, ssk.
• Row 19: *Yo, ssk, p1, k1, yo, k0, k2tog, p1, ssk, k0, yo, k1, p1, k2tog, yo, p1, repeat from * to last 13 sts, yo, ssk, p1, k1, yo, k0, k2tog, p1, ssk, k0, yo, k1, p1, k2tog, yo.