Shown with a cast-on count of 12 stitches.  

• Row 1 (RS): K3, yo, ssk, k1, [ssk, yo] twice, k2.
• Row 2: P2, yo, ssp, yo, p5, yo, p2tog, p1 (13 sts).
• Row 3: K3, yo, ssk, k4, yo, ssk, yo, k2 (14 sts).
• Row 4: P2, yo, ssp, yo, p7, yo, p2tog, p1 (15 sts).
• Row 5: K3, yo, ssk, k2tog, [yo] twice, ssk, k2, yo, ssk, yo, k2 (16 sts).
• Row 6: P2, yo, ssp, yo, p5, k1, p3, yo, p2tog, p1 (17 sts).
• Row 7: K3, yo, ssk, k2, k2tog, [yo] twice, ssk, k1, [yo, k2tog] twice, k1.
• Row 8: P1, p2tog, [yo, p2tog] twice, p1, k1, p5, yo, p2tog, p1 (16 sts).
• Row 9: K3, yo, ssk, k2tog, [yo] twice, ssk, k2tog, [yo, k2tog] twice, k1 (15 sts).
• Row 10: P1, p2tog, [yo, p2tog] twice, p1, k1, p3, yo, p2tog, p1 (14 sts).
• Row 11: K3, yo, ssk, k2, k2tog, [yo, k2tog] twice, k1 (13 sts).
• Row 12: P1, p2tog, [yo, p2tog] twice, p3, yo, p2tog, p1 (12 sts).