Shown with a cast-on count of 28 stitches.  

• Row 1 (RS): *K2tog, k2, yo, p1, k4, p1, yo, k2, ssk, repeat from *.
• Rows 2, 16, and 18: *[P4, k1] twice, p4, repeat from *.
• Row 3: *K2tog, yo, ssk, p1, yo, k4, yo, p1, k2tog, yo, ssk, repeat from *.
• Rows 4, 12, and 14: *P3, k1, p6, k1, p3, repeat from *.
• Row 5: *K2, 1/1 RC, p2, k2, p2, 1/1 RC, k2, repeat from *.
• Rows 6, 8, and 10: *P4, k2, p2, k2, p4, repeat from *.
• Row 7: *K4, p2, 1/1 RC, p2, k4, repeat from *.
• Row 9: *K2, yo, k2tog, p2, k2, p2, ssk, yo, k2, repeat from *.
• Row 11: *K1, yo, k1, p1, k1, k2tog, k2, ssk, k1, p1, k1, yo, k1, repeat from *.
• Row 13: *K3, p1, k2, 1/1 RC, k2, p1, k3, repeat from *.
• Row 15: *K3, yo, p1, k2tog, k2, ssk, p1, yo, k3, repeat from *.
• Row 17: *K1, yo, k1, k2tog, p1, k1, 1/1 RC, k1, p1, ssk, k1, yo, k1, repeat from *.