Shown with a cast-on count of 41 stitches.  

• Row 1 (RS): *K1, sl1-k2tog-psso, k1, yo, k1, yo, k4, p1, k4, yo, k1, yo, k1, k3tog, repeat from * to last st, k1.
• Rows 2, 4, 6, and 8: Purl.
• Row 3: *K1, sl1-k2tog-psso, k2, yo, k1, yo, k3, p1, k3, yo, k1, yo, k2, k3tog, repeat from * to last st, k1.
• Row 5: *K1, sl1-k2tog-psso, k3, yo, k1, yo, k2, p1, k2, yo, k1, yo, k3, k3tog, repeat from * to last st, k1.
• Row 7: *K1, sl1-k2tog-psso, k4, [yo, k1] twice, p1, [k1, yo] twice, k4, k3tog, repeat from * to last st, k1.
• Row 9: *K1, sl1-k2tog-psso, k5, yo, k1, yo, p1, yo, k1, yo, k5, k3tog, repeat from * to last st, k1.