Shown with a cast-on count of 15 stitches.  

• Round 1: P2, k2tog, yo, p7, yo, ssk, p2.
• Round 2: P2, k2tog, k1, yo, p5, yo, k1, ssk, p2.
• Round 3: P2, k2tog, k2, yo, p3, yo, k2, ssk, p2.
• Rounds 4-5: P2, k2tog, k3, yo, k1, yo, k3, ssk, p2.
• Rounds 6 and 10: P3, ssk, k2, yo, k1, yo, k2, k2tog, p3.
• Rounds 7 and 9: P4, ssk, k1, yo, k1, yo, k1, k2tog, p4.
• Round 8: P5, k2tog, yo, k1, yo, k2tog, p5.
• Round 11: P2, ssk, k3, yo, k1, yo, k3, k2tog, p2.
• Round 12: P1, ssk, k3, yo, p3, yo, k3, k2tog, p1.
• Round 13: P1, ssk, k2, yo, p5, yo, k2, k2tog, p1.
• Round 14: P1, ssk, k1, yo, p7, yo, k1, k2tog, p1.
• Round 15: P1, ssk, yo, p9, yo, k2tog, p1.
• Round 16: Ssk, yo, p11, yo, k2tog.