Shown with a cast-on count of 23 stitches.  

• Row 1 (WS): P3, ssp, yo, p2tog, p1, yo, p2tog, p3, ssp, yo, p1, ssp, yo, p2tog, p3 (21 sts).
• Row 2: K2, k2tog, yo, k1, yo, ssk, k1, yo, ssk, k1, k2tog, yo, k1, k2tog, yo, k1, yo, ssk, k2.
• Row 3: P1, ssp, yo, p3, yo, p2tog, p1, yo, sl1-k2tog-psso, yo, p1, ssp, yo, p3, yo, p2tog, p1.
• Row 4: K2tog, yo, k5, yo, ssk, k3, k2tog, yo, k5, yo, ssk.
• Row 5: P2, yo, p2tog, p4, yo, p2tog, p1, ssp, yo, p4, ssp, yo, p2.
• Row 6: K3, yo, ssk, k4, yo, sl1-k2tog-psso, yo, k4, k2tog, yo, k3.
• Row 7: P4, yo, p2tog, ssp, p2, yo, p1, yo, p2, p2tog, ssp, yo, p4.
• Row 8: K3, ssk, yo, ssk, k3, yo, k1, yo, k3, k2tog, yo, k2tog, k3.
• Row 9: P5, yo, p2tog, ssp, p1, yo, p1, yo, p1, p2tog, ssp, yo, p5.
• Row 10: K4, k2tog, yo, ssk, k2, yo, k1, yo, k2, k2tog, yo, ssk, k4.
• Row 11: P3, ssp, yo, p1, yo, p2tog, p2, yo, p1, yo, p2, ssp, yo, p1, yo, p2tog, p3 (23 sts).
• Row 12: K2, k2tog, yo, k3, yo, ssk, k2, yo, k1, yo, k2, k2tog, yo, k3, yo, ssk, k2 (25 sts).
• Row 13: P4, yo, p2tog, p2, p2tog, p5, ssp, p2, ssp, yo, p4 (23 sts).
• Row 14: K5, yo, ssk, k9, k2tog, yo, k5.
• Row 15: P6, yo, p2tog, p7, ssp, yo, p6.
• Row 16: K7, yo, ssk, k5, k2tog, yo, k7.