Shown with a cast-on count of 29 stitches.  

• Rows 1, 3, 5, 7, 9, 11, 13, 15, and 17 (WS): Purl.
• Row 2: K2, *k1, yo, ssk, k7, k2tog, yo, repeat from * to last 3 sts, k3.
• Row 4: K2, *k2, yo, ssk, k5, k2tog, yo, k1, repeat from * to last 3 sts, k3.
• Row 6: K2, *k1, [yo, ssk] twice, k3, [k2tog, yo] twice, repeat from * to last 3 sts, k3.
• Rows 8 and 12: K2, *k2, [yo, ssk] twice, k1, [k2tog, yo] twice, k1, repeat from * to last 3 sts, k3.
• Row 10: K2, *k1, [yo, ssk] twice, yo, sl2-k1-p2sso, yo, [k2tog, yo] twice, repeat from * to last 3 sts, k3.
• Row 14: K2, *k3, yo, ssk, yo, sl2-k1-p2sso, yo, k2tog, yo, k2, repeat from * to last 3 sts, k3.
• Row 16: K2, *k4, yo, ssk, k1, k2tog, yo, k3, repeat from * to last 3 sts, k3.
• Row 18: K2, *k5, yo, sl2-k1-p2sso, yo, k4, repeat from * to last 3 sts, k3.