Shown with a cast-on count of 16 stitches.  

• Round 1: P2, k4, sl2-k1-p2sso, k4, p2, (k1, yo, k1) in next st.
• Rounds 2 and 18: P2, k9, p2, k3.
• Round 3: P2, k3, sl2-k1-p2sso, k3, p2, k1, (k1, yo, k1) in next st, k1.
• Rounds 4 and 16: P2, k7, p2, k5.
• Round 5: P2, k2, sl2-k1-p2sso, k2, p2, k2, (k1, yo, k1) in next st, k2.
• Rounds 6 and 14: P2, k5, p2, k7.
• Round 7: P2, k1, sl2-k1-p2sso, k1, p2, k3, (k1, yo, k1) in next st, k3.
• Rounds 8 and 12: P2, k3, p2, k9.
• Round 9: P2, sl2-k1-p2sso, p2, k4, (k1, yo, k1) in next st, k4.
• Round 10: P2, k1, p2, k11.
• Round 11: P2, (k1, yo, k1) in next st, p2, k4, sl2-k1-p2sso, k4.
• Round 13: P2, k1, (k1, yo, k1) in next st, k1, p2, k3, sl2-k1-p2sso, k3.
• Round 15: P2, k2, (k1, yo, k1) in next st, k2, p2, k2, sl2-k1-p2sso, k2.
• Round 17: P2, k3, (k1, yo, k1) in next st, k3, p2, k1, sl2-k1-p2sso, k1.
• Round 19: P2, k4, (k1, yo, k1) in next st, k4, p2, sl2-k1-p2sso.
• Round 20: P2, k11, p2, k1.