Multiple of 6 + 5
To make the knots: Purl 3 together, leaving them on the left needle. Knit same 3 together, and Purl same 3 together again before dropping from left needle
Row 1: Knit
Row 2: Purl
Row 3: K1 *Make knot, K3* repeat from * to last 4 stitches, make knot, K1
Row 4: Purl
Row 5: Knit
Row 6: Purl
Row 7: K4 *Make knot, K3* repeat from * to last stitch, K1
Row 8: Purl
Repeat these 8 rows for the pattern.
Here is the video. Happy Knitting!