On Rows 9-16, if desired, purl the first st to keep edges even (unless edge sts added). Narrow seed stitch bands are deliberate result of offset caused by extra stitch at end of each row.
Shown with a cast-on count of 19 stitches.
1 2 3 4 5 Horizontal repeats
1 2 3 4 5 Vertical repeats
Swatch photo uploaded by Emex