Shown with a cast-on count of 33 stitches.  

• Rows 1, 3, 15, and 17 (RS): P1, [k1, p1] twice, *k10, p1, k1, p1, repeat from * to last 2 sts, k1, p1.
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, and 28: K1, [p1, k1] twice, *p10, k1, p1, k1, repeat from * to last 2 sts, p1, k1.
• Rows 5, 9, and 13: P1, [k1, p1] twice, *k1, [yo, k1] 3 times, [ssk] 3 times, p1, k1, p1, repeat from * to last 2 sts, k1, p1.
• Rows 7 and 11: P1, [k1, p1] twice, *k1, [k1, yo] 3 times, [ssk] 3 times, p1, k1, p1, repeat from * to last 2 sts, k1, p1.
• Rows 19, 23, and 27: P1, [k1, p1] twice, *[k2tog] 3 times, [k1, yo] 3 times, [k1, p1] twice, repeat from * to last 2 sts, k1, p1.
• Rows 21 and 25: P1, [k1, p1] twice, *[k2tog] 3 times, [yo, k1] 3 times, [k1, p1] twice, repeat from * to last 2 sts, k1, p1.