Shown with a cast-on count of 5 stitches.  

• Row 1 (RS): K5.
• Rows 2, 4, 6, 8, 10, and 12: Purl.
• Row 3: K1, yo, k1 tbl, kfb, k1 tbl, yo, k1 (8 sts).
• Row 5: K1, yo, k1 tbl, k2, yo, yo, k2, k1 tbl, yo, k1 (12 sts).
• Row 7: K1, yo, k2tog, k3, yo, yo, k3, ssk, yo, k1 (14 sts).
• Row 9: K1, yo, k2tog, k4, yo, yo, k4, ssk, yo, k1 (16 sts).
• Row 11: K1, yo, k1, yo, ssk, k4, yo, yo, k4, k2tog, yo, k1, yo, k1 (20 sts).