Shown with a cast-on count of 22 stitches.  

• Row 1 (RS): P1, k2, p11, k1, [yo] twice, k2tog, [yo] twice, k2tog, [yo] twice, k2tog, k1 (25 sts).
• Rows 2, 6, 10, and 14: P1, k2, p1, k2, p1, k2, p1, knit.
• Rows 3, 7, 11, and 15: P1, knit.
• Rows 4, 8, and 12: P1, knit.
• Row 5: P1, k2, yo, k2tog, yo, k2tog, yo, k2tog, yo, k2tog, yo, k2tog, yo, k2tog, k3, [yo] twice, k2tog, [yo] twice, k2tog, [yo] twice, k2tog, k1 (28 sts).
• Row 9: P1, k2, yo, k2tog, yo, k2tog, yo, k2tog, yo, k2tog, yo, k2tog, yo, k2tog, k6, [yo] twice, k2tog, [yo] twice, k2tog, [yo] twice, k2tog, k1 (31 sts).
• Row 13: P1, k2, yo, k2tog, yo, k2tog, yo, k2tog, yo, k2tog, yo, k2tog, yo, k2tog, k9, [yo] twice, k2tog, [yo] twice, k2tog, [yo] twice, k2tog, k1 (34 sts).
• Row 16: BO 12 sts, k21 (22 sts).