Shown with a cast-on count of 35 stitches.  

• Row 1 (RS): Sl1 wyib, k1, p2, k4, p2, k2, p3, p2, k6, p4, k3, p3, k2.
• Rows 2, 6, and 16: P2, k3, p3, k4, p3, turn (15 sts).
• Rows 3, 7, and 17: Sl1 wyib, k2, p4, k3, p3, k2.
• Rows 4, 8, and 18: P2, k3, p3, k4, p6, k2, k3, p2, k2, p4, k2, p2 (35 sts).
• Row 5: Sl1 wyib, k1, p2, 2/2 LC, p2, k2, p3, p2, 3/3 LC, p4, k3, p3, k2.
• Row 9: Sl1 wyib, k1, p2, k4, p2, k2, p3, 3/2 RPC, 3/2 LPC, 3/2 RPC, p3, k2.
• Row 10: P2, k3, k2, p6, k2, turn (15 sts).
• Row 11: Sl1 wyib, p1, k6, p2, p3, k2.
• Row 12: P2, k3, k2, p6, k4, p3, k3, p2, k2, p4, k2, p2 (35 sts).
• Row 13: Sl1 wyib, k1, p2, 2/2 LC, p2, k2, p3, k3, p4, 3/3 RC, p2, p3, k2.
• Row 14: P2, k3, k2, p6, k4, p3, k3, p2, k2, p4, k2, p2.
• Row 15: Sl1 wyib, k1, p2, k4, p2, k2, p3, 3/2 LPC, 3/2 RPC, 3/2 LPC, p3, k2.
• Repeat rows 2-18.