Knitted in a multiple of 6, + 4 sts and 16-row repeat.
Row 1 and all wrong side rows: Purl all sts.
Row 2 (Right side) : K4, * yo, k2, pass yarn-over loop over the 2 knit sts and drop it; k4; repeat from * to end.
Row 4: K5, * yo, k2, pass yarn-over loop over the 2 knit sts and drop it; k4; repeat from * to last 3 sts, k3.
Row 6: K6, * yo, k2, pass yarn-over loop over the 2 knit sts and drop it; k4; repeat from * to last 2 sts, k2.
Row 8: K5, *  yo, k2, pass yarn-over loop over the 2 knit sts and drop it; k4; repeat from * to last 3 sts, k3.
Row 10: K4, * yo, k2, pass yarn-over loop over the 2 knit stitches and drop it; k4; repeat from * to end.
Row 12: K3, * yo, k2, pass yarn-over loop over the 2 knit sts and drop it; k4; repeat from * to last 5 sts, k5.
Row 14: K2, * yo, k2, pass yarn-over loop over the 2 knit sts and drop it; k4; repeat from * to last 6 sts, k6.
Row 16: K3, * yo, k2, pass yarn-over loop over the 2 knit sts and drop it; k4; repeat from * to last 5 sts, k5.

Knitting abbreviations:
Knit:K | Yarn over: Yo.