Shown with a cast-on count of 53 stitches.  

• Row 1 (RS): K3, *sl1-k2tog-psso, k2, yo, k1, yo, k1, yo, k1, yo, k2, sl1-k2tog-psso, k4, repeat from * to last 16 sts, sl1-k2tog-psso, k2, yo, k1, yo, k1, yo, k1, yo, k2, sl1-k2tog-psso, k3.
• Rows 2, 4, and 6: Purl.
• Row 3: K2, *sl1-k2tog-psso, k1, yo, k3, yo, k1, yo, k3, yo, k1, sl1-k2tog-psso, k2, repeat from *.
• Row 5: K1, *sl1-k2tog-psso, yo, k5, yo, k1, yo, k5, yo, sl1-k2tog-psso, repeat from * to last st, k1.
• Repeat rows 1-16.