Shown with a cast-on count of 0 stitches.  

• Row 0 (WS): CO 20 sts (20 sts).
• Row 1: P2tog, p17, M1Rp, p1.
• Row 2: K1, M1R, k9, ssk, sl1 wyif, k1, turn (14 sts).
• Row 3: Sl1 wyib, p1, sl1 wyib, p2tog, p8, M1Rp, p1.
• Row 4: K1, M1R, k12, k1 below, k4, ssk (20 sts).
• Row 5: Ssk, k17, M1R, k1.
• Row 6: P1, M1Rp, p12, p2tog, sl1 wyif, p1, turn (17 sts).
• Row 7: Sl1 wyib, k1, sl1 wyib, ssk, k11, M1R, k1.
• Row 8: P1, M1Rp, p15, p1 below, p1, p2tog (20 sts).
• Repeat rows 1-8.