Shown with a cast-on count of 21 stitches.  

• Round 18: Ssk, p1, yo, k1 tbl, p1, ssk, p1, [k1 tbl, p1] 3 times, k2tog, p1, k1 tbl, yo, p1, k2tog (19 sts).
• Round 19: K1 tbl, p1, k1 tbl, yo, k1 tbl, p1, ssk, p1, [k1 tbl, p1] twice, k2tog, p1, k1 tbl, yo, k1 tbl, p1, k1 tbl.
• Round 20: [K1 tbl, p1] twice, yo, k1 tbl, p1, ssk, p1, k1 tbl, p1, k2tog, p1, k1 tbl, yo, [p1, k1 tbl] twice.
• Round 21: [K1 tbl, p1] twice, k1 tbl, yo, k1 tbl, p1, ssk, k1 tbl, k2tog, p1, k1 tbl, yo, k1 tbl, [p1, k1 tbl] twice.
• Rounds 22, 26, and 30: Yo, [k1 tbl, p1] 4 times, k3tog, [p1, k1 tbl] 4 times, yo.
• Rounds 23 and 27: K1 tbl, yo, [k1 tbl, p1] twice, ssk, [k1 tbl, p1] twice, k1 tbl, k2tog, [p1, k1 tbl] twice, yo, k1 tbl.
• Rounds 24 and 28: K1 tbl, p1, yo, [k1 tbl, p1] twice, ssk, p1, k1 tbl, p1, k2tog, [p1, k1 tbl] twice, yo, p1, k1 tbl.
• Rounds 25 and 29: K1 tbl, p1, k1 tbl, yo, [k1 tbl, p1] twice, ssk, k1 tbl, k2tog, [p1, k1 tbl] twice, yo, k1 tbl, p1, k1 tbl.