Work with a multiple of 19 stitches + 6 + 2 edge stitches.
Cast on 27 sts (19 + 6 + 2 edge sts) and proceed as per the chart.
The chart displays Right Side rows and Wrong Side rows.
The figures at the right margin of the chart signify RS rows, while those at the left margin indicate WS rows.
Interpret RS rows from right to left, and WS rows from left to right.
The pattern repeat = 19 sts wide.
yo: yarn over
k2tog: knit 2 stitches together
skpo: slip 1 stitch as if to knit, knit 1 and pass the slipped stitch over the knitted stitch
p2tog: purl 2 stitches together
p2tog tbl: purl two stitches together as one stitch through the back loop
Row 1: edge st, * p1, k4, p2, yo, k2, skpo, k7, p1 *; repeat from * to *; p1, k4, p1, edge st.
Row 2: edge st, k1, p4, k1, * k1, p6, p2tog tbl, p2, yo, p1, k2, p4, k1 *; repeat from * to *; edge st.
Row 3: edge st, * p1, k4, p2, k2, yo, k2, skpo, k5, p1 *; repeat from * to *; p1, k4, p1, edge st.
Row 4: edge st, k1, p4, k1, * k1, p4, p2tog tbl, p2, yo, p3, k2, p4, k1 *; repeat from * to *; edge st.
Row 5: edge st, * p1, k4, p2, k4, yo, skpo, k5, p1 *; repeat from * to *; p1, k4, p1, edge st.
Row 6: edge st, k6, * k1, p4, p2tog, yo, p5, k7 *; repeat from * to *; edge st.
Row 7: edge st, * p1, k4, p2, k7, k2tog, k2, yo, p1 *; repeat from * to *; p1, k4, p1, edge st.
Row 8: edge st, k6, * k1, p1, yo, p2, p2tog, p6, k7 *; repeat from * to *; edge st.
Row 9: edge st, * p1, k4, p2, k5, k2tog, k2, yo, k2, p1 *; repeat from * to *; p1, k4, p1, edge st.
Row 10: edge st, k6, * k1, p3, yo, p2, p2tog, p4, k7 *; repeat from * to *; edge st.
Row 11: edge st, * p1, k4, p2, k5, k2tog, yo, k4, p1 *; repeat from * to *; p1, k4, p1, edge st.
Row 12: edge st, k1, p4, k1, * k1, p5, yo, p2tog tbl, p4, k2, p4, k1 *; repeat from * to *; edge st.
Continue repeating Rows 1-12 indefinitely.