Shown with a cast-on count of 30 stitches.  

• Rounds 1-2 and 9: P1, *k1, p1, repeat from * to last st, p1.
• Rounds 3 and 7: Knit.
• Round 4: P14, incL, p2, incR, p14 (32 sts).
• Round 5: P1, *p1, k1, repeat from * to last st, p1.
• Round 6: P1, [p1, k1] 7 times, incL, k1, p1, incR, [p1, k1] 7 times, p1 (34 sts).
• Round 8: P16, incL, p2, incR, p16 (36 sts).
• Round 10: P1, [k1, p1] 8 times, incL, p1, k1, incR, [k1, p1] 8 times, p1 (38 sts).