Shown with a cast-on count of 30 stitches.  

• Row 1 (RS): *K2, yo, k1, yo, k2, p3, p3tog, p3, repeat from * to last 2 sts, k2.
• Row 2: P2, *k7, p7, repeat from *.
• Row 3: *K2, yo, k3, yo, k2, p2, p3tog, p2, repeat from * to last 2 sts, k2.
• Row 4: P2, *k5, p9, repeat from *.
• Row 5: *K2, yo, k5, yo, k2, p1, p3tog, p1, repeat from * to last 2 sts, k2.
• Row 6: P2, *k3, p11, repeat from *.
• Row 7: *K2, yo, k7, yo, k2, p3tog, repeat from * to last 2 sts, k2.
• Row 8: P2, *k1, p13, repeat from *.
• Row 9: *K2, p3, p3tog, p3, k2, yo, k1, yo, repeat from * to last 2 sts, k2.
• Row 10: *P7, k7, repeat from * to last 2 sts, p2.
• Row 11: *K2, p2, p3tog, p2, k2, yo, k3, yo, repeat from * to last 2 sts, k2.
• Row 12: *P9, k5, repeat from * to last 2 sts, p2.
• Row 13: *K2, p1, p3tog, p1, k2, yo, k5, yo, repeat from * to last 2 sts, k2.
• Row 14: *P11, k3, repeat from * to last 2 sts, p2.
• Row 15: *K2, p3tog, k2, yo, k7, yo, repeat from * to last 2 sts, k2.
• Row 16: *P13, k1, repeat from * to last 2 sts, p2.