Shown with a cast-on count of 22 stitches.  

• Row 1 (RS): K1, *k2tog, yo, 1/1 LC, 1/1 LC, 1/1 LC, 1/1 LC, repeat from * to last st, k1.
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, and 20: Purl.
• Row 3: K1, *k1, yo, k1, 1/1 LC, 1/1 LC, 1/1 LC, ssk, repeat from * to last st, k1.
• Row 5: K1, *k2, yo, 1/1 LC, 1/1 LC, 1/1 LC, ssk, repeat from * to last st, k1.
• Row 7: K1, *k3, yo, k1, 1/1 LC, 1/1 LC, ssk, repeat from * to last st, k1.
• Row 9: K1, *k5, yo, k1, 1/1 LC, ssk, repeat from * to last st, k1.
• Row 11: K1, *k8, yo, ssk, repeat from * to last st, k1.
• Row 13: K1, *k2tog, k7, yo, k1, repeat from * to last st, k1.
• Row 15: K1, *k2tog, k6, yo, 1/1 LC, repeat from * to last st, k1.
• Row 17: K1, *k2tog, k5, yo, 1/1 LC, k1, repeat from * to last st, k1.
• Row 19: K1, *k2tog, k3, yo, k1, 1/1 LC, 1/1 LC, repeat from * to last st, k1.