Shown with a cast-on count of 38 stitches.  

• Row 1 (RS): P2, *k9, yo, k1, yo, k3, sl1-k2tog-psso, p2, repeat from *.
• Rows 2, 4, 6, 8, 10, and 12: Purl.
• Row 3: P2, *k10, yo, k1, yo, k2, sl1-k2tog-psso, p2, repeat from *.
• Row 5: P2, *k3tog, k4, yo, k1, yo, k3, [yo, k1] twice, sl1-k2tog-psso, p2, repeat from *.
• Row 7: P2, *k3tog, k3, yo, k1, yo, k9, p2, repeat from *.
• Row 9: P2, *k3tog, k2, yo, k1, yo, k10, p2, repeat from *.
• Row 11: P2, *k3tog, [k1, yo] twice, k3, yo, k1, yo, k4, sl1-k2tog-psso, p2, repeat from *.
• Repeat rows 1-12.