Shown with a cast-on count of 33 stitches.  

• Row 1 (RS): K16, p1, k16.
• Row 2: P15, k1, p1, k1, p15.
• Row 3: K14, p1, k3, p1, k14.
• Row 4: P13, k1, p5, k1, p13.
• Row 5: K12, p1, k7, p1, k12.
• Row 6: P11, k1, p9, k1, p11.
• Row 7: K10, p1, k11, p1, k10.
• Row 8: K9, p1, k13, p1, k9.
• Row 9: K8, p17, k8.
• Row 10: P7, k1, p1, k1, p13, k1, p1, k1, p7.
• Row 11: K6, p1, k3, p1, k11, p1, k3, p1, k6.
• Row 12: P5, k1, p5, k1, p9, k1, p5, k1, p5.
• Row 13: K4, p1, k7, p1, k7, p1, k7, p1, k4.
• Row 14: P3, k1, p9, k1, p5, k1, p9, k1, p3.
• Row 15: K2, p1, k11, p1, k3, p1, k11, p1, k2.
• Row 16: P1, k1, p13, k1, p1, k1, p13, k1, p1.
• Row 17: K33.