Shown with a cast-on count of 8 stitches.  

• Round 1: K8.
• Round 2: [Yo, k1] 8 times (16 sts).
• Round 3: K16.
• Round 4: [Yo, k1] 16 times (32 sts).
• Round 5: K32.
• Round 6: [Yo, k1, yo, k1, k2tog] 8 times (40 sts).
• Round 7: K40.
• Round 8: [Yo, k1, yo, k1, k1, k2tog] 8 times (48 sts).
• Round 9: [K4, k2tog] 8 times (40 sts).
• Round 10: [Yo, k1, yo, k1, yo, k1, k2tog] 8 times (56 sts).
• Round 11: [K5, k2tog] 8 times (48 sts).
• Round 12: [Yo, k1, yo, k1, yo, k1, k1, k2tog] 8 times (64 sts).
• Round 13: [K6, k2tog] 8 times (56 sts).
• Round 14: [Yo, k1, yo, k1, yo, k1, k2, k2tog] 8 times (72 sts).
• Round 15: [K7, k2tog] 8 times (64 sts).
• Round 16: [Yo, k1, yo, k1, yo, k1, k3, k2tog] 8 times (80 sts).
• Round 17: [K8, k2tog] 8 times (72 sts).
• Round 18: [Yo, k1, yo, k1, yo, k1, k4, k2tog] 8 times (88 sts).
• Round 19: [K9, k2tog] 8 times (80 sts).
• Round 20: [Yo, k1, yo, k1, yo, k1, k5, k2tog] 8 times (96 sts).
• Round 21: [K10, k2tog] 8 times (88 sts).
• Round 22: [Yo, k1, yo, k1, yo, k1, k6, k2tog] 8 times (104 sts).
• Round 23: [K11, k2tog] 8 times (96 sts).
• Round 24: [Yo, k1, yo, k1, yo, k1, k7, k2tog] 8 times (112 sts).
• Round 25: [K12, k2tog] 8 times (104 sts).