Shown with a cast-on count of 45 stitches.  

• Row 1 (RS): K3, yo, k4, ssk, k3, yo, p1, yo, k3, ssk, k4, yo, k1, yo, k4, ssk, k3, yo, p1, yo, k3, ssk, k4, yo, k3 (49 sts).
• Row 2: K4, p9, k1, p9, k1, p1, k1, p9, k1, p9, k4.
• Row 3: K3, yo, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, yo, k1, yo, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, yo, k3 (53 sts).
• Row 4: K3, p1, k1, p9, k1, p9, k1, p3, k1, p9, k1, p9, k1, p1, k3.
• Row 5: K3, yo, k1, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, k1, yo, k1, yo, k1, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, k1, yo, k3 (57 sts).
• Row 6: K3, p2, k1, p9, k1, p9, k1, p5, k1, p9, k1, p9, k1, p2, k3.
• Row 7: K3, yo, k2, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, k2, yo, k1, yo, k2, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, k2, yo, k3 (61 sts).
• Row 8: K3, p3, k1, p9, k1, p9, k1, p7, k1, p9, k1, p9, k1, p3, k3.
• Row 9: K3, yo, k3, ssk, k3, yo, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, yo, k3, ssk, k3, yo, k1, yo, k3, ssk, k3, yo, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, yo, k3, ssk, k3, yo, k3 (65 sts).
• Row 10: K3, p9, k1, p9, k1, p19, k1, p9, k1, p9, k3.
• Row 11: K3, yo, k4, ssk, k3, yo, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, yo, k3, ssk, k4, yo, k1, yo, k4, ssk, k3, yo, p1, yo, k3, sl1-k2tog-psso, k3, yo, k1, yo, k3, ssk, k4, yo, k3 (69 sts).
• Row 12: K4, p9, k1, p9, k1, p9, k1, p1, k1, p9, k1, p9, k1, p9, k4.
• Row 13: K3, yo, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, yo, k1, yo, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, yo, k3 (73 sts).
• Row 14: K3, p1, k1, p9, k1, p9, k1, p9, k1, p3, k1, p9, k1, p9, k1, p9, k1, p1, k3.
• Row 15: K3, yo, k1, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, k1, yo, k1, yo, k1, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, yo, k3, sl1-k2tog-psso, k3, yo, p1, k1, yo, k3 (77 sts).
• Row 16: K3, p2, k1, p9, k1, p9, k1, p9, k1, p5, k1, p9, k1, p9, k1, p9, k1, p2, k3.