Shown with a cast-on count of 55 stitches.  

• Row 1 (RS): Yo, k2tog, yo, 2/1 RC, k2tog, yo, 1/1 RC, k1, 1/1 LC, yo, ssk, 2/1 LC, yo, *sl1-k2tog-psso, yo, 2/1 RC, k2tog, yo, 1/1 RC, k1, 1/1 LC, yo, ssk, 2/1 LC, yo, repeat from * to last 2 sts, ssk, yo (multiple of 18 sts, plus 21).
• Row 2: P2, *p18, repeat from * to last 19 sts, p19.
• Row 3: Yo, k2tog, yo, 2/1 RC, k2tog, yo, 1/1 RC, 3-to-9 gather, 1/1 LC, yo, ssk, 2/1 LC, *k1, 2/1 RC, k2tog, yo, 1/1 RC, 3-to-9 gather, 1/1 LC, yo, ssk, 2/1 LC, repeat from * to last 2 sts, yo, ssk, yo (multiple of 24 sts, plus 29).
• Row 4: P3, *p24, repeat from * to last 26 sts, p26.
• Row 5: Yo, k2tog, yo, 2/1 RC, k2tog, yo, [1/1 RC] twice, k2, yo, sl1-k2-psso, yo, k2, [1/1 LC] twice, yo, ssk, *5-to-3 gather, k2tog, yo, [1/1 RC] twice, k2, yo, sl1-k2-psso, yo, k2, [1/1 LC] twice, yo, ssk, repeat from * to last 5 sts, 2/1 LC, yo, ssk, yo (multiple of 23 sts, plus 32).