Shown with a cast-on count of 20 stitches.  

• Rows 1 and 3 (WS): Knit.
• Row 2: Knit.
• Row 4: K10, yo wrapping yarn twice, k10 (21 sts).
• Row 5: K3, p7, 1-to-5 inc, p7, k3 (25 sts).
• Row 6: K2, ssk, k17, k2tog, k2 (23 sts).
• Row 7: K3, p17, k3.
• Row 8: K2, ssk, k5, [yo, k1] 5 times, yo, k5, k2tog, k2 (27 sts).
• Row 9: K3, p5, k11, p5, k3.
• Row 10: K2, ssk, k19, k2tog, k2 (25 sts).
• Row 11: K3, p4, k11, p4, k3.
• Row 12: Knit to last 23 sts, ssk, k2, [ssk, yo] 3 times, k1, [yo, k2tog] 3 times, k2, k2tog, k2 (23 sts).
• Row 13: K3, p3, k11, p3, k3.
• Row 14: K2, ssk, k15, k2tog, k2 (21 sts).
• Row 15: K3, p2, k11, p2, k3.
• Row 16: K2, [ssk] twice, [yo, ssk] twice, yo, k1, [yo, k2tog] 3 times, k4 (20 sts).