Shown with a cast-on count of 12 stitches.  

• Row 1 (RS): K4, yo, ssk, k2, yo, ssk, yo, k2 (13 sts).
• Row 2: P2, yo, ssp, yo, p5, yo, p2tog, p2 (14 sts).
• Row 3: K1, k2tog, yo, k7, yo, ssk, yo, k2 (15 sts).
• Row 4: P2, yo, ssp, yo, p6, ssp, yo, p3 (16 sts).
• Row 5: K4, yo, ssk, k3, k2tog, yo, k1, yo, ssk, yo, k2 (17 sts).
• Row 6: P2, yo, ssp, yo, p3, yo, p2tog, p4, yo, p2tog, p2 (18 sts).
• Row 7: K1, k2tog, yo, k4, k2tog, yo, k5, yo, ssk, yo, k2 (19 sts).
• Row 8: P2, yo, ssp, yo, p1, yo, p2tog, p1, ssp, yo, p4, ssp, yo, p3 (20 sts).
• Row 9: K4, yo, ssk, k4, yo, k3tog, yo, k3, yo, ssk, yo, k2 (21 sts).
• Row 10: P2, yo, ssp, yo, p5, yo, p2tog, p6, yo, p2tog, p2 (22 sts).
• Row 11: K1, k2tog, yo, k6, k2tog, yo, k1, yo, ssk, k1, k2tog, [yo, k2tog] twice, k1 (21 sts).
• Row 12: P1, [p2tog, yo] twice, p3tog, yo, p3, yo, p2tog, p3, ssp, yo, p3 (20 sts).
• Row 13: K4, yo, ssk, k1, k2tog, yo, k4, k2tog, [yo, k2tog] twice, k1 (19 sts).
• Row 14: P1, p2tog, [yo, p2tog] twice, p1, ssp, yo, p5, yo, p2tog, p2 (18 sts).
• Row 15: K1, k2tog, yo, k7, yo, k3tog, [yo, k2tog] twice, k1 (17 sts).
• Row 16: P1, p2tog, [yo, p2tog] twice, p5, ssp, yo, p3 (16 sts).
• Row 17: K4, yo, ssk, k3, k2tog, [yo, k2tog] twice, k1 (15 sts).
• Row 18: P1, p2tog, [yo, p2tog] twice, p4, yo, p2tog, p2 (14 sts).
• Row 19: K1, k2tog, yo, k4, k2tog, [yo, k2tog] twice, k1 (13 sts).
• Row 20: P1, p2tog, [yo, p2tog] twice, p1, ssp, yo, p3 (12 sts).