Shown with a cast-on count of 22 stitches.  

• Row 1 (RS): K1, *yo, ssk, k8, repeat from * to last st, k1.
• Rows 2, 12, and 22: K1, *yo, p2tog, p5, p2tog tbl, yo, p1, repeat from * to last st, k1.
• Rows 3, 13, and 23: K1, *k2, yo, ssk, k3, k2tog, yo, k1, repeat from * to last st, k1.
• Rows 4, 14, and 24: K1, *p2, yo, p2tog, p1, p2tog tbl, yo, p3, repeat from * to last st, k1.
• Rows 5, 15, and 25: K1, *k4, yo, k3tog, yo, k3, repeat from * to last st, k1.
• Row 6: K1, *[p3, p2tog tbl, yo] twice, repeat from * to last st, k1.
• Row 7: K1, *[k1, yo, ssk, k2] twice, repeat from * to last st, k1.
• Row 8: K1, *[p1, p2tog tbl, yo, p2] twice, repeat from * to last st, k1.
• Row 9: K1, *[k3, yo, ssk] twice, repeat from * to last st, k1.
• Row 10: K1, *[yo, p3, p2tog tbl] twice, repeat from * to last st, k1.
• Row 11: K1, *[yo, ssk, k3] twice, repeat from * to last st, k1.
• Row 16: K1, *[p2tog, p3, yo] twice, repeat from * to last st, k1.
• Row 17: K1, *[k3, k2tog, yo] twice, repeat from * to last st, k1.
• Row 18: K1, *[p1, yo, p2tog, p2] twice, repeat from * to last st, k1.
• Row 19: K1, *[k1, k2tog, yo, k2] twice, repeat from * to last st, k1.
• Row 20: K1, *[p3, yo, p2tog] twice, repeat from * to last st, k1.
• Row 21: K1, *[yo, k3, k2tog] twice, repeat from * to last st, k1.
• Row 26: K1, purl to last st, k1.