Shown with a cast-on count of 50 stitches.  

• Row 1 (RS): K2, [k2tog, yo] 4 times, *k1, yo, k2, ssk, k4, ssk, k2, yo, [k2tog, yo] 3 times, repeat from * to last 2 sts, k2.
• Rows 2, 4, 6, 8, 10, and 12: Purl.
• Row 3: K1, [k2tog, yo] 4 times, *k3, yo, k2, ssk, k2, ssk, k2, yo, [k2tog, yo] 3 times, repeat from * to last 3 sts, k3.
• Row 5: [K2tog, yo] 4 times, *k5, yo, k2, ssk, ssk, k2, yo, [k2tog, yo] 3 times, repeat from * to last 4 sts, k4.
• Row 7: K2, *[yo, k2tog] 3 times, yo, k2, ssk, k4, ssk, k2, yo, k1, repeat from * to last 10 sts, [yo, k2tog] 3 times, yo, k2tog, k2.
• Row 9: K3, *[yo, k2tog] 3 times, yo, k2, ssk, k2, ssk, k2, yo, k3, repeat from * to last 9 sts, [yo, k2tog] 3 times, yo, k2tog, k1.
• Row 11: K4, *[yo, k2tog] 3 times, yo, k2, ssk, ssk, k2, yo, k5, repeat from * to last 8 sts, [yo, k2tog] 3 times, yo, k2tog.
• Repeat rows 1-12.