Shown with a cast-on count of 6 stitches.  

• Rows 1 and 3 (RS): Knit.
• Row 2: [P1, yo] twice, p2, [yo, p1] twice (10 sts).
• Row 4: P1, yo, p3, yo, p2, yo, p3, yo, p1 (14 sts).
• Row 6 (WS): P1, yo, p5, yo, p2, yo, p5, yo, p1 (18 sts).
• Row 8 (WS): P1, yo, p7, yo, p2, yo, p7, yo, p1 (22 sts).
• Row 10 (WS): P1, yo, p9, yo, p2, yo, p9, yo, p1 (26 sts).
• Row 12 (WS): P1, yo, p11, yo, p2, yo, p11, yo, p1 (30 sts).
• Row 14 (WS): P1, yo, p13, yo, p2, yo, p13, yo, p1 (34 sts).
• Row 16 (WS): P1, yo, p15, yo, p2, yo, p15, yo, p1 (38 sts).
• Row 18 (WS): P1, yo, p17, yo, p2, yo, p17, yo, p1 (42 sts).
• Row 20 (WS): P1, yo, p19, yo, p2, yo, p19, yo, p1 (46 sts).