Shown with a cast-on count of 25 stitches.  

• Row 1 (RS): IncL, p1, *k3tog, p3, (k1, p1, k1) in next st, p3, repeat from * to last 4 sts, k3tog, p1, incR.
• Row 2: P1, k2, *k3, p3, k4, repeat from * to last 2 sts, k1, p1.
• Row 3: IncL, p1, *k3tog, p2, k1, (k1, p1, k1) in next st, k1, p2, repeat from * to last 4 sts, k3tog, p1, incR.
• Row 4: P1, k2, *k2, p5, k3, repeat from * to last 2 sts, k1, p1.
• Row 5: IncL, p1, *k3tog, p1, k2, (k1, p1, k1) in next st, k2, p1, repeat from * to last 4 sts, k3tog, p1, incR.
• Row 6: P1, k2, *k1, p7, k2, repeat from * to last 2 sts, k1, p1.
• Row 7: IncL, p1, *k3tog, k3, (k1, p1, k1) in next st, k3, repeat from * to last 4 sts, k3tog, p1, incR.
• Row 8: K2, p1, *k9, p1, repeat from * to last 2 sts, k2.
• Row 9: K2tog, *(k1, p1, k1) in next st, p3, k3tog, p3, repeat from * to last 3 sts, (k1, p1, k1) in next st, k2tog.
• Row 10: P3, *p1, k7, p2, repeat from * to last 2 sts, p2.
• Row 11: K2tog, *(k1, p1, k1) in next st, k1, p2, k3tog, p2, k1, repeat from * to last 3 sts, (k1, p1, k1) in next st, k2tog.
• Row 12: P3, *p2, k5, p3, repeat from * to last 2 sts, p2.
• Row 13: K2tog, *(k1, p1, k1) in next st, k2, p1, k3tog, p1, k2, repeat from * to last 3 sts, (k1, p1, k1) in next st, k2tog.
• Row 14: P3, *p3, k3, p4, repeat from * to last 2 sts, p2.
• Row 15: K2tog, *(k1, p1, k1) in next st, k3, k3tog, k3, repeat from * to last 3 sts, (k1, p1, k1) in next st, k2tog.
• Row 16: K3, *k4, p1, k5, repeat from * to last 2 sts, k2.