Shown with a cast-on count of 11 stitches.  

• Row 1 (RS): P2, [yo, k1 tbl, yo, k1 tbl] 3 times, yo, k1 tbl, yo, p2 (19 sts).
• Rows 2, 4, 6, and 8: Purl.
• Row 3: P2, [yo, k3, yo, k1 tbl] 3 times, yo, k3, yo, p2 (27 sts).
• Row 5: P2, [yo, k5, yo, k1 tbl] 3 times, yo, k5, yo, p2 (35 sts).
• Row 7: P2, [yo, k1, k3tog, k1, yo, k3] 3 times, yo, k3, k3tog, k1, yo, p2.
• Row 10: Purl.