Shown with a cast-on count of 9 stitches.  

• Row 1 (RS): Sl1 wyib, k2, [k2tog, yo] twice, k1, yo, k1 (10 sts).
• Rows 2, 4, 6, 8, 10, and 12: Sl1 wyib, knit.
• Row 3: Sl1 wyib, k1, [k2tog, yo] twice, k3, yo, k1 (11 sts).
• Row 5: Sl1 wyib, [k2tog, yo] twice, k5, yo, k1 (12 sts).
• Row 7: Sl1 wyib, k2, [yo, k2tog] twice, k1, k2tog, yo, k2tog (11 sts).
• Row 9: Sl1 wyib, k3, yo, k2tog, yo, k3tog, yo, k2tog (10 sts).
• Row 11: Sl1 wyib, k4, yo, k3tog, yo, k2tog (9 sts).