Shown with a cast-on count of 31 stitches.  

• Rows 1, 5, and 9 (RS): P2, *yo, ssk, p3, k2 tbl, p3, repeat from * to last 9 sts, yo, ssk, p3, k2 tbl, p2.
• Rows 2, 4, 6, 8, 10, 12, 14, 16, and 18: Purl.
• Rows 3 and 7: P2, *k2tog, yo, p3, k2 tbl, p3, repeat from * to last 9 sts, k2tog, yo, p3, k2 tbl, p2.
• Rows 11, 15, and 19: P2, *k2 tbl, p3, yo, ssk, p3, repeat from * to last 9 sts, k2 tbl, p3, yo, ssk, p2.
• Rows 13 and 17: P2, *k2 tbl, p3, k2tog, yo, p3, repeat from * to last 9 sts, k2 tbl, p3, k2tog, yo, p2.