Shown with a cast-on count of 16 stitches.  

• Rows 1 and 15 (RS): Purl.
• Row 2 (RS): K2tog, M1L, k2tog, M1L, k2, k2tog, M1L, k2, k2tog, knit to last 2 sts, k2tog, M1L (15 sts).
• Rows 3, 5, 7, and 9: Purl.
• Row 4: K2tog, M1L, k2tog, M1L, k2, k2tog, k3, k2tog, ctr dbl inc, k1.
• Row 6: K2tog, M1L, k2tog, M1L, k2, k2tog, k1, k2tog, ctr dbl inc, ctr dbl inc, M1L, k2tog (17 sts).
• Row 8: K2tog, M1L, k2tog, k3, k2tog, k2, kfb, kfb, k2tog, M1L, k2tog, M1L.
• Row 10: K2tog, M1L, k2tog, knit to last 12 sts, k2tog, k2, k2tog, M1R, k2, k2tog, M1R, k2tog, M1R (15 sts).
• Row 12: K2tog, ctr dbl inc, k2tog, k3, k2tog, k2, k2tog, M1R, k1, M1R.
• Row 13: P6, p2tog, p1, p2tog, p4 (13 sts).
• Row 14: K2tog, M1L, ctr dbl inc, ctr dbl inc, k3tog, k2, k2tog, M1R, k2tog, M1R (15 sts).
• Row 16: K2tog, M1L, k2tog, M1L, kfb, kfb, k2, k2tog, k3, k2tog, M1L (16 sts).