Shown with a cast-on count of 38 stitches.  

• Row 1 (RS): K1, yo, k1, yo, k3tog tbl, *k1, k4tog, yo, k1, yo, k1, yo, k1, yo, k1, yo, k1, yo, k4tog, repeat from * to last 5 sts, k1, k3tog tbl, yo, k1, yo.
• Rounds 2-4, 6-8, 10-12, 14-16, 18-20, 22-24, and 26-28: Knit.
• Rows 5, 9, 13, 17, 21, and 25 (WS): K1, yo, k1, yo, k3tog tbl, *k1, k4tog, yo, k1, yo, k1, yo, k1, yo, k1, yo, k1, yo, k4tog, repeat from * to last 5 sts, k1, k3tog tbl, yo, k1, yo.