Shown with a cast-on count of 42 stitches.  

• Row 1 (RS): [K1, p1] twice, k4, k2tog, yo, k1, *k4, yo, ssk, k1, k2tog, yo, k1, repeat from * to last 11 sts, k6, [p1, k1] twice, p1.
• Rows 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, and 28: [P1, k1] twice, purl to last 5 sts, [k1, p1] twice, k1.
• Row 3: [K1, p1] twice, k3, k2tog, yo, k2, *yo, ssk, k3, yo, sl1-k2tog-psso, yo, k2, repeat from * to last 11 sts, k6, [p1, k1] twice, p1.
• Row 5: [K1, p1] twice, k3, yo, ssk, k2, *k1, yo, ssk, k3, yo, ssk, k2, repeat from * to last 11 sts, k6, [p1, k1] twice, p1.
• Row 7: [K1, p1] twice, k4, yo, ssk, k1, *k2, yo, ssk, k3, yo, ssk, k1, repeat from * to last 11 sts, k6, [p1, k1] twice, p1.
• Row 9: [K1, p1] twice, k5, yo, ssk, *[k3, yo, ssk] twice, repeat from * to last 11 sts, k6, [p1, k1] twice, p1.
• Row 11: [K1, p1] twice, k6, yo, *ssk, k5, k2tog, yo, k1, yo, repeat from * to last 12 sts, ssk, k5, [p1, k1] twice, p1.
• Row 13: [K1, p1] twice, k7, *yo, ssk, k3, k2tog, yo, k3, repeat from * to last 11 sts, yo, ssk, k4, [p1, k1] twice, p1.
• Row 15: [K1, p1] twice, k7, *k1, yo, ssk, k1, k2tog, yo, k4, repeat from * to last 11 sts, k1, yo, ssk, k3, [p1, k1] twice, p1.
• Row 17: [K1, p1] twice, k7, *k2, yo, k3tog, yo, k3, k2tog, yo, repeat from * to last 11 sts, k2, yo, ssk, k2, [p1, k1] twice, p1.
• Row 19: [K1, p1] twice, k7, *k2, k2tog, yo, k3, k2tog, yo, k1, repeat from * to last 11 sts, k2, k2tog, yo, k2, [p1, k1] twice, p1.
• Row 21: [K1, p1] twice, k7, *k1, k2tog, yo, k3, k2tog, yo, k2, repeat from * to last 11 sts, k1, k2tog, yo, k3, [p1, k1] twice, p1.
• Row 23: [K1, p1] twice, k7, *[k2tog, yo, k3] twice, repeat from * to last 11 sts, k2tog, yo, k4, [p1, k1] twice, p1.
• Row 25: [K1, p1] twice, k6, k2tog, *yo, k1, yo, ssk, k5, k2tog, repeat from * to last 10 sts, yo, k5, [p1, k1] twice, p1.
• Row 27: [K1, p1] twice, k5, k2tog, yo, *k3, yo, ssk, k3, k2tog, yo, repeat from * to last 11 sts, k6, [p1, k1] twice, p1.