Shown with a cast-on count of 29 stitches.  

• Row 71 (RS): K1, p1, k1, yo, k7, yo, *k1, yo, k7, yo, repeat from * to last 3 sts, k1, p1, k1 (multiple of 10 sts, plus 15).
• Rows 72, 74, 76, 78, and 80: K1, p1, k1, purl to last 3 sts, k1, p1, k1.
• Rows 73 and 77: K1, p1, k1, yo, ssk, *k2tog, yo, k1, yo, ssk, repeat from * to last 5 sts, k2tog, yo, k1, p1, k1.
• Row 75: K1, p1, k1, yo, ssk, k5, *k2tog, yo, k1, yo, ssk, k5, repeat from * to last 5 sts, k2tog, yo, k1, p1, k1.
• Row 79: K1, p1, k1, yo, k9, yo, *k1, yo, k9, yo, repeat from * to last 3 sts, k1, p1, k1 (multiple of 12 sts, plus 17).