Repeat rows 1 - 4.

Row #SideBegin RowRepeatRepeat From *End Row
1W*purl* 
2RK1*knit into next stitch in the row below, keeping the original stitch on the needle, then slip the new stitch onto the left-hand needle and knit it again, then knit the original stitch and pass the new stitch over it, k3* 
3W*purl* 
4RK3*knit into next stitch in the row below, keeping the original stitch on the needle, then slip the new stitch onto the left-hand needle and knit it again, then knit the original stitch and pass the new stitch over it, k3 *k1