Shown with a cast-on count of 29 stitches.  

• Row 1 (RS): K1, ctr dbl inc, knit to last 3 sts, ssk, k1 (1 more st).
• Row 2: Knit.
• Row 3: K1, ctr dbl inc, k1, *yo, k3tog, yo, k3, repeat from * to last 15 sts, yo, k3tog, yo, k3, yo, k3tog, yo, k3, ssk, k1 (multiple of 6 sts, plus 19).
• Row 4: K4, k2tog, yo, k1, yo, k2tog, k1, k2tog, yo, k1, yo, *k2tog, k1, k2tog, yo, k1, yo, repeat from * to last 6 sts, k2tog, k4.
• Row 5: K1, ctr dbl inc, k1, k2tog, yo, *k3, yo, k3tog, yo, repeat from * to last 14 sts, k3, yo, k3tog, yo, k5, ssk, k1 (multiple of 6 sts, plus 20).
• Row 6: K3, yo, k2tog, k1, k2tog, yo, k1, yo, k2tog, k1, k2tog, *yo, k1, yo, k2tog, k1, k2tog, repeat from * to last 6 sts, yo, k6.
• Row 7: K1, ctr dbl inc, k5, *yo, k3tog, yo, k3, repeat from * to last 13 sts, yo, k3tog, yo, k3, yo, k3tog, yo, k1, ssk, k1 (multiple of 6 sts, plus 21).
• Row 8: K5, yo, k2tog, k1, k2tog, yo, k1, yo, *k2tog, k1, k2tog, yo, k1, yo, repeat from * to last 10 sts, k2tog, k1, k2tog, yo, k5.
• Row 9: K1, ctr dbl inc, k4, yo, k3tog, yo, *k3, yo, k3tog, yo, repeat from * to last 12 sts, k3, yo, k3tog, yo, k3, ssk, k1 (multiple of 6 sts, plus 22).
• Row 10: K4, k2tog, yo, k1, yo, k2tog, k1, k2tog, *yo, k1, yo, k2tog, k1, k2tog, repeat from * to last 10 sts, yo, k1, yo, k2tog, k1, k2tog, yo, k4.
• Row 11: K1, ctr dbl inc, k3, yo, k3tog, yo, k3, *yo, k3tog, yo, k3, repeat from * to last 11 sts, yo, k3tog, yo, k5, ssk, k1 (multiple of 6 sts, plus 23).
• Row 12: K3, yo, k2tog, k1, k2tog, yo, k1, yo, *k2tog, k1, k2tog, yo, k1, yo, repeat from * to last 14 sts, k2tog, k1, k2tog, yo, k1, yo, k2tog, k6.
• Row 13: K1, ctr dbl inc, k3, k2tog, yo, k3, yo, k3tog, yo, *k3, yo, k3tog, yo, repeat from * to last 10 sts, k3, yo, k3tog, yo, k1, ssk, k1 (multiple of 6 sts, plus 24).
• Row 14: K5, yo, k2tog, k1, k2tog, *yo, k1, yo, k2tog, k1, k2tog, repeat from * to last 14 sts, yo, k1, yo, k2tog, k1, k2tog, yo, k1, yo, k2tog, k5.
• Repeat rows 3-14.