From the Oh! Valencia socks in Custom Socks* by Kate Atherley. Like Half Leaf, but with p1 columns every half-repeat.
p1
*Affiliate link. Buy the book and I get a couple pennies.
Shown with a cast-on count of 25 stitches.
1 2 3 4 5 Horizontal repeats
1 2 3 4 5 Vertical repeats