Shown with a cast-on count of 19 stitches.  

• Row 1 (RS): K3, ssk, k9, k2tog, k3 (17 sts).
• Rows 2, 4, 6, 8, 10, and 12: Purl.
• Row 3: K3, ssk, k7, k2tog, k3 (15 sts).
• Row 5: K3, ssk, k5, k2tog, k3 (13 sts).
• Row 7: K3, ssk, k3, k2tog, k3 (11 sts).
• Row 9: K3, ssk, k1, k2tog, k3 (9 sts).
• Row 11: K3, sl2-k1-p2sso, k3 (7 sts).