Shown with a cast-on count of 23 stitches.  

• Round 1: K7, [k2tog, yo] twice, k1, [yo, ssk] twice, k7.
• Rounds 2 and 4: Knit.
• Round 3: K6, [k2tog, yo] twice, k3, [yo, ssk] twice, k6.
• Round 5: K5, [k2tog, yo] twice, k1, yo, ssk, k2, [yo, ssk] twice, k5.
• Round 6: K4, [k2tog, yo] twice, k7, [yo, ssk] twice, k4.
• Round 7: K3, [k2tog, yo] twice, k1, yo, k2tog, yo, sl1-k2tog-psso, yo, ssk, yo, k1, [yo, ssk] twice, k3.
• Round 8: K2, [k2tog, yo] twice, k11, [yo, ssk] twice, k2.
• Round 9: K1, [k2tog, yo] twice, k2, [k2tog, yo] twice, k1, [yo, ssk] twice, k2, [yo, ssk] twice, k1.