Shown with a cast-on count of 2 stitches.  

• Row 1 (RS): K1, incL, k1, incR (4 sts).
• Row 2: K2, p1, k1.
• Row 3: K1, incL, k1, p1, incR, k1 (6 sts).
• Row 4: [K1, p1] twice, k2.
• Row 5: K1, incL, p1, k1, p1, k1, incR, k1 (8 sts).
• Row 6: K2, *p1, k1, repeat from *.
• Row 7: K1, incL, *k1, p1, repeat from * to last st, incR, k1 (multiple of 2 sts, plus 4).
• Row 8: *K1, p1, repeat from * to last 2 sts, k2.
• Row 9: K1, incL, *p1, k1, repeat from * to last st, incR, k1 (multiple of 2 sts, plus 4).
• Repeat rows 6-9.