Row 1 (RS): K1, p1, repeat from . row 2 and 6: Sl1 wyib, yo, p1, repeat from * (multiple of 3 sts). row 3 and 7: K1, sl1 wyib, sl1 wyib, yo, repeat from * (multiple of 4 sts). row 4 and 8: K3tog, p1, repeat from * (multiple of 2 sts). row 5: K2tog, p1, repeat from * (multiple of 2 sts).
Shown with a cast-on count of 4 stitches.