Shown with a cast-on count of 4 stitches.  

• Row 0 (WS): P4.
• Row 1: K2tog, yo, k1, yo, k1 (5 sts).
• Row 2: K2, p1, k2.
• Row 3: K2tog, yo, k2, yo, k1 (6 sts).
• Row 4: K2, p2, k2.
• Row 5: K2tog, yo, k3, yo, k1 (7 sts).
• Row 6: K2, p3, k2.
• Row 7: K2tog, yo, k4, yo, k1 (8 sts).
• Row 8: K2, p4, k2.
• Row 9: K2tog, yo, k5, yo, k1 (9 sts).
• Row 10: K2, p5, k2.
• Row 11: K2tog, yo, k3, k2tog, yo, k1, yo, k1 (10 sts).
• Row 12: K2, p1, k1, p4, k2.
• Row 13: K2tog, yo, k2, k2tog, yo, p1 PB, yo, ssk, yo, k1 (11 sts).
• Row 14: K2, p1, k3, p3, k2.
• Row 15: K2tog, yo, k1, k2tog, yo, p3, yo, ssk, yo, k1 (12 sts).
• Row 16: K2, p1, k5, p2, k2.
• Row 17: K2tog, yo, k2tog, yo, p5, yo, ssk, yo, k1 (13 sts).
• Row 18: K2, p1, k7, p1, k2.
• Row 19: K2tog, yo, k2tog, yo, p5, yo, ssk, k1, yo, k1 (14 sts).
• Row 20: K2, p2, k7, p1, k2.
• Row 21: K2tog, yo, k2tog, yo, p5, yo, ssk, k2, yo, k1 (15 sts).
• Row 22: K2, p3, k7, p1, k2.
• Row 23: K2tog, yo, k1, yo, ssk, p3, k2tog, yo, k2tog, yo, k2, yo, k1 (16 sts).
• Row 24: K2, p6, k3, p3, k2.
• Row 25: K2tog, yo, k2, yo, ssk, p1, k2tog, yo, k2tog, yo, k4, yo, k1 (17 sts).
• Row 26: K2, p8, k1, p4, k2.
• Row 27: K2tog, yo, *k3, yo, sl2-k1-p2sso, yo, k2tog, yo, k3, repeat from * to last 4 sts, k3, yo, k1 (multiple of 11 sts, plus 7).
• Row 28: K2, p3, *p6, k1, p4, repeat from * to last 2 sts, k2.
• Row 29: K2tog, yo, *k3, yo, sl2-k1-p2sso, yo, k2tog, yo, k3, repeat from * to last 5 sts, k4, yo, k1 (multiple of 11 sts, plus 8).
• Row 30: K2, p4, *p6, k1, p4, repeat from * to last 2 sts, k2.
• Row 31: K2tog, yo, *k3, yo, sl2-k1-p2sso, yo, k2tog, yo, k3, repeat from * to last 6 sts, k5, yo, k1 (multiple of 11 sts, plus 9).
• Row 32: K2, p5, *p6, k1, p4, repeat from * to last 2 sts, k2.
• Row 33: K2tog, yo, *k3, yo, sl2-k1-p2sso, yo, k2tog, yo, k3, repeat from * to last 7 sts, k6, yo, k1 (multiple of 11 sts, plus 10).
• Row 34: K2, p1, k1, p4, *p6, k1, p4, repeat from * to last 2 sts, k2.
• Row 35: K2tog, yo, *k2, k2tog, yo, p1 PB, yo, ssk, yo, ssk, k2, repeat from * to last 8 sts, k2, k2tog, yo, p1 PB, yo, ssk, yo, k1 (multiple of 11 sts, plus 11).
• Row 36: K2, p1, k3, p3, *p5, k3, p3, repeat from * to last 2 sts, k2.
• Row 37: K2tog, yo, *k1, k2tog, yo, p3, yo, ssk, yo, ssk, k1, repeat from * to last 9 sts, k1, k2tog, yo, p3, yo, ssk, yo, k1 (multiple of 11 sts, plus 12).
• Row 38: K2, p1, k5, p2, *p4, k5, p2, repeat from * to last 2 sts, k2.
• Row 39: K2tog, yo, *k2tog, yo, p5, yo, ssk, yo, ssk, repeat from * to last 10 sts, k2tog, yo, p5, yo, ssk, yo, k1 (multiple of 11 sts, plus 13).
• Row 40: K2, p1, k7, p1, *p3, k7, p1, repeat from * to last 2 sts, k2.
• Row 41: K2tog, yo, *k2tog, yo, p5, yo, ssk, yo, ssk, repeat from * to last 11 sts, k2tog, yo, p5, yo, ssk, k1, yo, k1 (multiple of 11 sts, plus 14).
• Row 42: K2, p2, k7, p1, *p3, k7, p1, repeat from * to last 2 sts, k2.
• Row 43: K2tog, yo, *k2tog, yo, p5, yo, ssk, yo, ssk, repeat from * to last 12 sts, k2tog, yo, p5, yo, ssk, k2, yo, k1 (multiple of 11 sts, plus 15).
• Row 44: K2, p3, k7, p1, *p3, k7, p1, repeat from * to last 2 sts, k2.
• Row 45: K2tog, yo, *k1, yo, ssk, p3, k2tog, yo, k2tog, yo, k1, repeat from * to last 13 sts, k1, yo, ssk, p3, k2tog, yo, k2tog, yo, k2, yo, k1 (multiple of 11 sts, plus 16).
• Row 46: K2, p6, k3, p3, *p5, k3, p3, repeat from * to last 2 sts, k2.
• Row 47: K2tog, yo, *k2, yo, ssk, p1, k2tog, yo, k2tog, yo, k2, repeat from * to last 14 sts, k2, yo, ssk, p1, k2tog, yo, k2tog, yo, k4, yo, k1 (multiple of 11 sts, plus 17).
• Row 48: K2, p8, k1, p4, *p6, k1, p4, repeat from * to last 2 sts, k2.
• Repeat rows 27-48.