Shown with a cast-on count of 31 stitches.  

• Rows 1 and 5 (RS): K2, *p3, k3, yo, sl2-k1-p2sso, yo, k3, repeat from * to last 5 sts, p3, k2.
• Rows 2, 4, 6, 8, 10, 12, 14, and 16: Purl.
• Row 3: K2, *p3, k1, k2tog, yo, k3, yo, ssk, k1, repeat from * to last 5 sts, p3, k2.
• Rows 7 and 15: Knit.
• Rows 9 and 13: K2, *yo, sl2-k1-p2sso, yo, k3, p3, k3, repeat from * to last 5 sts, yo, sl2-k1-p2sso, yo, k2.
• Row 11: *K2tog, yo, k3, yo, ssk, k1, p3, k1, repeat from * to last 7 sts, k2tog, yo, k3, yo, ssk.