Shown with a cast-on count of 13 stitches.  

• Row 1 (RS): *K1, p1, k3, p1, repeat from * to last st, k1.
• Row 2: P1, *k1, p3, k1, p1, repeat from *.
• Rows 3 and 17: *K1, p1, k1, sl1 wyif, k1, p1, repeat from * to last st, k1.
• Rows 4, 10, 14, and 18: P1, *[k1, p1] 3 times, repeat from *.
• Rows 5 and 15: *K1, p1, yo, sl1-k2tog-psso, yo, p1, repeat from * to last st, k1.
• Rows 6 and 16: P1, *[k2, p1] twice, repeat from *.
• Rows 7 and 11: *K2, yo, p3tog, yo, k1, repeat from * to last st, k1.
• Rows 8 and 12: P1, *p1, k1, sl1 wyif, k1, p2, repeat from *.
• Rows 9 and 13: *K1, yo, ssk, p1, k2tog, yo, repeat from * to last st, k1.