Shown with a cast-on count of 28 stitches.  

• Row 1 (RS): Knit.
• Rows 2, 8, 10, 12, 14, 16, and 18: Purl.
• Row 7: *K1, yo, ssk, k8, k2tog, yo, k1, repeat from *.
• Row 9: *K2, yo, ssk, k6, k2tog, yo, k2, repeat from *.
• Row 11: *K3, yo, ssk, k4, k2tog, yo, k3, repeat from *.
• Row 13: *K2, k2tog, yo, k6, yo, ssk, k2, repeat from *.
• Row 15: *K1, k2tog, yo, k8, M1L, ssk, k1, repeat from *.
• Row 17: *K2tog, M1R, k10, yo, ssk, repeat from *.