Shown with a cast-on count of 17 stitches.  

• Rounds 1-3: [P1, k1] 8 times, p1.
• Rounds 4-5: [K1, p1] 8 times, k1.
• Round 6: [K1, p1] 3 times, ssk, k1, k2tog, [p1, k1] 3 times (15 sts).
• Rounds 7-9: [P1, k1] 7 times, p1.
• Rounds 10-11: [K1, p1] 7 times, k1.
• Round 12: [K1, p1] twice, k1, ssp, p1, p2tog, k1, [p1, k1] twice (13 sts).
• Rounds 13-15: [P1, k1] 6 times, p1.
• Rounds 16-17: [K1, p1] 6 times, k1.
• Round 18: [K1, p1] twice, ssk, p1, k2tog, [p1, k1] twice (11 sts).