Shown with a cast-on count of 71 stitches.  

• Row 1 (RS): K3, yo, knit to last 3 sts, yo, sl3 wyif (73 sts).
• Rows 2 and 6: K3, purl to last 3 sts, sl3 wyif.
• Row 3: K3, yo, k2, [p2, k2] 16 times, p1, yo, sl3 wyif (75 sts).
• Row 4: K5, p2, [k2, p2] 16 times, k1, sl3 wyif.
• Row 5: K3, yo, k69, yo, sl3 wyif (77 sts).
• Row 7: K3, yo, p2, [k2, p2] 17 times, k1, yo, sl3 wyif (79 sts).
• Row 8: K3, p2, k2, [p2, k2] 17 times, p1, sl3 wyif.