Shown with a cast-on count of 19 stitches.  

• Row 1 (RS): P1, yo, ssk, *p1, k2tog, yo, p1, yo, ssk, repeat from * to last 4 sts, p1, k2tog, yo, p1.
• Row 2: P1, k1, p2, *p1, k1, p1, k1, p2, repeat from * to last 3 sts, p1, k1, p1.
• Row 3: P2, yo, *sl1-k2tog-psso, yo, p3, yo, repeat from * to last 5 sts, sl1-k2tog-psso, yo, p2.
• Rows 4 and 8: Purl.
• Row 5: P1, k2tog, yo, *p1, yo, ssk, p1, k2tog, yo, repeat from * to last 4 sts, p1, yo, ssk, p1.
• Row 6: P2, k1, p1, *k1, p3, k1, p1, repeat from * to last 3 sts, k1, p2.
• Row 7: K2tog, yo, p1, *p2, yo, sl1-k2tog-psso, yo, p1, repeat from * to last 4 sts, p2, yo, ssk.