Shown with a cast-on count of 50 stitches.  

• Round 1: [Yo, (k1, yo, k1) in next st, yo, k9] 5 times (70 sts).
• Rounds 2, 4, 6, 8, 10, 12, 14, 16, 18, and 20: Knit.
• Round 3: [Yo, k5, yo, k9] 5 times (80 sts).
• Round 5: [Yo, k1 tbl, k2, (k1, yo, k1) in next st, k2, k1 tbl, yo, k9] 5 times (100 sts).
• Round 7: [Yo, k1, [sl2-k1-p2sso] 3 times, k1, yo, k2, k2tog, yo, k1, yo, ssk, k2] 5 times (80 sts).
• Round 9: [K7tog, k2tog, k2, yo, k1, yo, k2, ssk] 5 times (50 sts).
• Round 11: [1-To-5 inc, k2tog, k2, yo, k1, yo, k2, ssk] 5 times (70 sts).
• Round 13: [Yo, [k1, yo] 5 times, ssk, k2, yo, k1, yo, k2, k2tog, yo] 5 times (105 sts).
• Round 15: [Yo, ssk, k1, sl2-k1-p2sso, k1, k2tog, yo, k2, ssk, k5, k2tog, k1] 5 times (85 sts).
• Round 17: [K1, yo, ssk, k1, k2tog, yo, k3, ssk, k3, k2tog, k1] 5 times (75 sts).
• Round 19: [K2, yo, sl2-k1-p2sso, yo, k4, ssk, k1, k2tog, k1] 5 times (65 sts).
• Round 21: [K9, sl2-k1-p2sso, k1] 5 times (55 sts).