From Vogue Knitting Stitchionary Volume Five: Lace Knitting*, with slight modifications to the vertical repeat. See also this Ravelry post.
*Affiliate link. Buy the book and I get a couple pennies.
Shown with a cast-on count of 35 stitches.
1 2 3 4 5 Horizontal repeats
1 2 3 4 5 Vertical repeats