Shown with a cast-on count of 40 stitches.  

• Rows 1, 3, 5, 7, 9, and 11 (RS): K5, purl to last 5 sts, k5.
• Row 2: K5, *k2tog, yo, k5, yo, ssk, k3, p3, repeat from * to last 5 sts, k5.
• Row 4: K5, *k2tog, k5, yo, k1, yo, k2, ssk, p3, repeat from * to last 5 sts, k5.
• Row 6: K5, *k2tog, k4, yo, k3, yo, k1, ssk, p3, repeat from * to last 5 sts, k5.
• Row 8: K5, *k2tog, k3, yo, k5, yo, ssk, p3, repeat from * to last 5 sts, k5.
• Row 10: K5, *k2tog, k2, yo, k1, yo, k5, ssk, p3, repeat from * to last 5 sts, k5.
• Row 12: K5, *k2tog, k1, yo, k3, yo, k4, ssk, p3, repeat from * to last 5 sts, k5.