Shown with a cast-on count of 17 stitches.  

• Row 1 (RS): K6, k2tog, yo, k1, yo, ssk, k6.
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, and 28: Purl.
• Row 3: K5, k2tog, yo, k3, yo, ssk, k5.
• Row 5: K4, [k2tog, yo] twice, k1, [yo, ssk] twice, k4.
• Row 7: K3, [k2tog, yo] twice, k3, [yo, ssk] twice, k3.
• Row 9: K2, [k2tog, yo] 3 times, k1, [yo, ssk] 3 times, k2.
• Row 11: K1, [k2tog, yo] 3 times, k3, [yo, ssk] 3 times, k1.
• Row 13: [K2tog, yo] 3 times, k5, [yo, ssk] 3 times.
• Row 15: K1, [yo, ssk] 3 times, k3, [k2tog, yo] 3 times, k1.
• Row 17: K2, [yo, ssk] 3 times, k1, [k2tog, yo] 3 times, k2.
• Row 19: K3, [yo, ssk] twice, yo, sl1-k2tog-psso, yo, [k2tog, yo] twice, k3.
• Row 21: K4, [yo, ssk] twice, k1, [k2tog, yo] twice, k4.
• Row 23: K5, yo, ssk, yo, sl1-k2tog-psso, yo, k2tog, yo, k5.
• Row 25: K6, yo, ssk, k1, k2tog, yo, k6.
• Row 27: K7, yo, sl1-k2tog-psso, yo, k7.