Shown with a cast-on count of 8 stitches.  

• Round 1: Purl.
• Round 2: *Yo, sl1 wyib, p3, repeat from * (multiple of 5 sts).
• Round 3: *Yo, drop st, sl1 wyib, p3, repeat from *.
• Round 4: *Yo, sl2 wyib, p3, repeat from * (multiple of 6 sts).
• Round 5: *Yo, sl3 wyib, p3, repeat from * (multiple of 7 sts).
• Round 6: *Yo, sl4 wyib, p3, repeat from * (multiple of 8 sts).
• Round 7: *K4tog, (p1, k1) in next st, p3, repeat from * (multiple of 6 sts).
• Round 8: *K1, p1, k1, p3, repeat from *.
• Round 9: *K2tog, p1, ssk, p1, repeat from * (multiple of 4 sts).