Shown with a cast-on count of 49 stitches.  

• Row 1 (RS): P1, k1, yo, *k6, yo, sl1-k2tog-psso, yo, k1, repeat from * to last 7 sts, k5, yo, k1, p1 (multiple of 10 sts, plus 11).
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, and 24: Purl.
• Rows 3 and 25: P1, k1, yo, knit to last 2 sts, yo, k1, p1 (2 more sts).
• Row 5: P1, k1, yo, k2, k2tog, yo, k1, yo, ssk, *k15, k2tog, yo, k1, yo, ssk, repeat from * to last 4 sts, k2, yo, k1, p1 (multiple of 20 sts, plus 15).
• Row 7: P1, k1, yo, k2, k2tog, yo, k3, yo, ssk, *k13, k2tog, yo, k3, yo, ssk, repeat from * to last 4 sts, k2, yo, k1, p1 (multiple of 20 sts, plus 17).
• Row 9: P1, k1, yo, k4, yo, ssk, yo, sl2-k1-p2sso, yo, *k15, yo, ssk, yo, sl2-k1-p2sso, yo, repeat from * to last 6 sts, k4, yo, k1, p1 (multiple of 20 sts, plus 19).
• Row 11: P1, k1, yo, k2tog, yo, k1, yo, ssk, k1, yo, sl2-k1-p2sso, yo, k1, k2tog, yo, k1, yo, ssk, *k5, k2tog, yo, k1, yo, ssk, k1, yo, sl2-k1-p2sso, yo, k1, k2tog, yo, k1, yo, ssk, repeat from * to last 2 sts, yo, k1, p1 (multiple of 20 sts, plus 21).
• Row 13: P1, k1, yo, k2tog, yo, *k3, yo, ssk, k3, k2tog, yo, repeat from * to last 7 sts, k3, yo, ssk, yo, k1, p1 (multiple of 10 sts, plus 13).
• Row 15: P1, k1, yo, k2, yo, ssk, yo, sl2-k1-p2sso, yo, *k5, yo, ssk, yo, sl2-k1-p2sso, yo, repeat from * to last 4 sts, k2, yo, k1, p1 (multiple of 10 sts, plus 15).
• Row 17: P1, k1, yo, *k4, yo, sl2-k1-p2sso, yo, k1, k2tog, yo, k1, yo, ssk, k1, yo, sl2-k1-p2sso, yo, k3, repeat from * to last 3 sts, k1, yo, k1, p1 (multiple of 20 sts, plus 7).
• Row 19: P1, k1, yo, *k8, k2tog, yo, k3, yo, ssk, k5, repeat from * to last 5 sts, k3, yo, k1, p1 (multiple of 20 sts, plus 9).
• Row 21: P1, k1, yo, *k10, yo, ssk, yo, sl2-k1-p2sso, yo, k5, repeat from * to last 7 sts, k5, yo, k1, p1 (multiple of 20 sts, plus 11).
• Row 23: P1, k1, yo, *k12, yo, sl2-k1-p2sso, yo, k5, repeat from * to last 9 sts, k7, yo, k1, p1 (multiple of 20 sts, plus 13).