To make a neater opening in the cable, try the increase in row 7 as "kbf" (knit the first st in the back loop, then finish in front). This also looks better on WS. In Row 3 substitute 2/2 RC if preferred.
Shown with a cast-on count of 14 stitches.
1 2 3 4 5 Horizontal repeats
1 2 3 4 5 Vertical repeats
Swatch photo uploaded by Emex